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Showing posts with label respiratory protection. Show all posts
Showing posts with label respiratory protection. Show all posts

Thursday, October 14, 2021

Should We Be Wearing Better Masks? The Best Face Covering Is The One That Is Worn Properly & Used!

We recently read two articles in The Atlantic called "Why Are Americans Still - Still! - Wearing Cloth Masks?" and "Why Aren't We Wearing Better Masks?" and another in Scientific American called "Why We Need to Upgrade Our Face Masks - and Where to Get Them".  All three articles discuss why Americans are still wearing cloth face-coverings now that N95 respirators (or the KN95 respirators, these respirators are made in China and are not approved by the National Institute of Occupational Safety and Health (NIOSH)) are more readily available (The NIOSH Science Blog discusses the roles NIOSH, Occupational Safety and Health Administration (OSHA) and the Food and Drug Administration (FDA) play regarding respiratory protection).  The articles mention a new study not peer-reviewed yet from Bangladesh which claims that wearing surgical masks decrease COVID-19 symptoms and antibodies by 11.2 percent, while cloth masks only led to a 5 percent decrease.  It proceeds to give several reasons why we continue to use face-coverings from public-health agencies not prioritizing surgical masks and N95 respirators to price to supporting one's sports team.  Two of the articles describe how face-coverings are far better than nothing and also saying how cloth masks are more eco-friendly (The Covid Crisis Is Now a Garbage Crisis, Too) giving face-coverings a backhanded credit for helping when nothing else was available.  The articles, in my opinion, even support the notion that we should be buying KN95 respirators even though they are not approved by NIOSH.  If anything shouldn't we be buying American-made N95 respirators so we can increase the demand and hence increase the supply of masks that are made here?  This was the subject of a New York Times article "Can't Find an N95 Mask? This Company Has 30 Million That It Can't Sell" and the Washington Post article "In the early days of the pandemic, the U.S. government turned down an offer to manufacture millions of N95 masks in America."

Two suppliers of N95 respirators

Let us first say as a person, who believes in the use of respirators and their importance in protecting individuals from exposure to hazardous substances (see all our posts regarding 9/11), we agree that N95 respirators or surgical masks would protect people better from SARS-CoV-2 than cloth face-coverings if worn correctly.  However, we would need to be able to provide each person N95 respirators (in their size either small, medium, or large) or surgical masks, make sure they had a sufficient supply to meet their needs, make sure the N95 respirator fits each person, make sure they understand how to wear the N95 respirator or surgical masks correctly, and finally, they are provided a means of disposal for the respirators or the surgical masks.  As you can imagine that would be a significant cost to the government (or tax-payers) and would require a significant undertaking to make sure every American would be protected by using N95 respirators or surgical masks.  Meanwhile, the biggest issue is whether we are talking N95 respirators, surgical masks, or face coverings they must be worn correctly to protect you, and remember facial hair reduces the effectiveness of all these face coverings.  See the chart below for various ways of improperly using face coverings.  The Centers for Disease Control and Prevention (CDC) website "Types of Masks and Respirators" was updated as of September 23, 2021, and provides information on types of masks and when to wear them and now includes a section on considerations for children.


Both these articles treat surgical masks and N95 respirators as simple items to wear and that anyone can wear them.  However, this is not a fact as we mentioned above N95 respirators require medical clearance, fit testing, and training all mandated by OSHA for individuals that are required to wear them.  As for surgical masks, we have to remember the ones that are typically sold to the public aren't actually surgical masks.  Surgical masks are cleared by the FDA, see the chart below for the difference between the N95 respirators and surgical masks.  Note that surgical masks do not provide the wearer with a reliable level of protection from inhaling smaller airborne particles.  This is for FDA-cleared surgical masks, which means the ones the public purchases probably aren't reliable either considering they are not cleared by FDA.

Surgical Masks vs N95 respirators

However, the use of cloth face-coverings has been shown to reduce the emission of virus-laden droplets (source control) and help reduce inhalation of these droplets.  The CDC website "Use of Cloth Masks to Control the Spread of SARS-CoV-2" which was last updated on May 7, 2021, provides some significant research on how the use of cloth face-coverings block the transmission of respiratory droplets with some face-coverings performing on par with surgical masks as barriers for source control.  In the section "Human Studies of Masking and SARS-CoV-2 Transmission" data regarding the "real-world" effectiveness of community masking is limited to observational and epidemiological studies with many of these showing significant levels of protection from wearing face coverings.  An example of one of these was "A study of an outbreak aboard the USS Theodore Roosevelt, an environment notable for congregate living quarters and close working environments, found that use of face coverings on-board was associated with a 70% reduced risk of transmission.

Note the circled area of the package (which means they are not surgical masks). 

It is our opinion, one of the main reasons face-coverings are better is because they are easier to use, easier to breathe through, light-weight, and because of these things more likely to be used and used correctly.  Wearing the face-covering correctly and using the face covering is what is helping reduce transmission of SARS-CoV-2.  So follow the CDC guidelines on when to use face-coverings and let's stop the spread!

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Tuesday, March 24, 2020

Filtering Facepiece Respirator or a Dust Mask or N95 Respirator versus a Surgical Mask





Back in 2011 we posted this video from the Occupational Safety and Health Administration (OSHA) Respirator Safety Video discussing the difference between respirators and surgical masks is a very good video to better understand the difference between these two pieces of equipment that can protect you from particular hazards.

There is a lot of confusion currently (during the coronavirus pandemic) about the difference between these two items.  The video above gives you a basic understanding.  To expand on that information realize the surgical mask does not protect the user from what's in the air its not designed to be a filter.  It's designed to protect the public from what the individual wearing it has.  Hence its popularity in Asian countries where it is considered a courtesy to wear it when you're sick.  See the chart below for more differences.


The filtering facepiece respirator was designed for the purpose of being lightweight, easy to use, and protect workers from particulates in the air but they are single-use (they should not be used for more than 8 hours and you throw them away).  If you're interested in learning about this mask's history read this article written in Fast Company "The untold origin story of the N95 mask".  Unfortunately, like most respirators, these need to be fit tested to ensure they fit correctly and also need to be fit checked to ensure it is placed on the face correctly.  An interesting point is that air will take the path of least resistance, and that is why respirators need to be fit tested to make sure all the air goes through the filter(s).  It is also why workers with facial hair cannot wear tight-fitting respirators.  The facial hair creates a path of least resistance into the respirator.  Digg posted an interesting video that shows a person coughing and the difference between a surgical mask (designed to protect the public) and an N95 respirator (designed to protect the user).  Properly putting on and taking off the N95 respirator is also important to make sure all the air goes through the filter.  See the video below to ensure you are doing this correctly.  Remember you should follow the manufacturer's procedures when putting on or taking off the respirator.


One more point, don't touch the filter it could be contaminated.  If you do immediately wash your hands or if unavailable use alcohol-based hand sanitizer.  If you're sick you wear the surgical mask and keep your distance (3 feet or arms-length or the preferrable 6 feet) or better yet stay home!  If you are trying not to get sick you wear the N95 respirator.  However, if you have not been fit tested with the respirator, have not performed the fit check, have facial hair, or not wearing it properly then the respirator would be better off in a Doctor, Nurse, or Emergency Responders hands to help them with the shortages they are experiencing.  Just keep your distance or better yet stay at home!!! 
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Thursday, January 04, 2018

OSHA's Silica Standard - What's All The Fuss About? Part One

Happy New Year!  May your New Year be healthy, profitable, & peaceful!  This blog post we will talk about the silica regulation and what the fuss is all about.  We've heard from some of our clients that they are concerned that the regulation is like the asbestos regulation.  Well in reality the regulation is more like the lead regulation than the asbestos regulation.  The big drop in the permissible exposure limit makes it similar to the asbestos regulation in that visible dust exposures may result in violations, but that's where it ends for similarity.  Table 1 of the silica standard is similar to the 1926.62 (d) (2) of the lead standard which is Protection of Employees During Assessment of Exposure.  Where based on a certain task (i.e., scrapping lead paint) the employer must comply with all parts of the standard, including the use of respirators.  Table 1 in a sense has a similar requirements.
Spraying Water to Keep Dust Levels Down Will Become Common Place
The Occupational Safety and Health Administration (OSHA) released the final rule for respirable crystalline silica 1926.1153 on March 25, 2016 with compliance dates more than one year past the publication date.  Giving the various industries regulated by the standard plenty of time to comply.  In fact, the construction industry was the first industry required to comply by June 23, 2017, however, the current administration delayed the standard until September 23, 2017 giving the construction industry additional time to comply.  In addition, OSHA's silica website is quite robust with guidance documents in helping the industry comply.  With all this time to comply, including challenges to the standard that the courts eliminated, and equipment manufacturers having time to review Table 1 of the standard, complying with the standard is pretty straightforward if you are performing any of 18 tasks in Table 1.

Table 1 tasks involve exposures to respirable crystalline silica when the following tools are used on concrete, brick, block, stone, mortar, and other materials that contain crystalline silica:
  • Stationary masonry saws;
  • Handheld power saws;
  • Handheld power saws for cutting fiber-cement board;
  • Walk-behind saws;
  • Drivable saws;
  • Rig-mounted core saws or drills;
  • Handheld and stand-mounted drills (including impact and rotary hammer drills);
  • Dowel drilling rigs;
  • Vehicle-mounted drilling rigs;
  • Jackhammers and handheld powered chipping tools;
  • Handheld grinders for mortar removal (i.e., tuckpointing);
  • Handheld grinders for uses other than mortar removal;
  • Walk-behind milling machines and floor grinders;
  • Small drivable milling machines;
  • Large drivable milling machines;
  • Crushing machines; and
  • Heavy equipment and utility vehicles when used to abrade or fracture silica containing materials (i.e., hoe-ramming or rock ripping) or used during demolition activities; and 
  • Heavy equipment and utility vehicles when used for tasks such as grading and excavating.
Doing tasks in this manner, we hope will be a thing of the past!
If your work involves Table 1 tasks then determine how long your workers do those tasks and follow the requirements.  If the requirements require a respirator then you may want to reduce the time period a worker does a task so a respirator is not required.  This would be considered an administrative control under hierarchy of controls and perfectly acceptable.  Once you have determined the tasks, the controls, and time periods, the next step is to write your exposure control plan.  The exposure control plan details the tasks, controls, and time periods/respirator requirements and designating a competent person to ensure the exposure control plan is enforced.  The final step is to train the workers and the competent person on the exposure control plan so everyone understands and knows what is required under the plan.

Wearing A Respirator, Adds Significant Costs for Silica Projects

If your exposure control plan requires respirator, then you must meet the requirements of the respirator standard 1910.134, see our blog post regarding the directive which tells you how this standard would be enforced.  This standard would require a medical evaluation of workers to ensure they can wear a respirator, annual respirator fit testing, and annual training on the use of the respirator.  Respirator standard would also require a written program and the designation of a competent person to administer the written program.  In addition, the silica standard would require you provide a medical exam, specifically for silica, if workers use respirators for 30 days or more in a calendar year.  This medical would be required every 3 years.  The medical must include:
  •  medical & work history; 
  • chest x-ray;
  • pulmonary function test; 
  • physical exam focused on the respiratory system; and
  • testing for latent tuberculosis infection.  
After all of the above, the final steps in compliance is maintaining the records, in accordance with 1910.1020, and updating the plans on an annual basis.  1910.1020 standard requires that exposure records be maintained for 30 years from the date of creation and medical records be maintained for duration of employment plus 30 years. 
More Projects Will Look Something Like This
Based on the above information, we think it is pretty obvious that you want to eliminate tasks that involve the use of respirators or reduce the amount time a worker does a task that might require a respirator.  Doing so eliminates the need for the silica medical exam and all the requirements under the respirator standard.  The long term costs involved with meeting the requirements for using a respirator (silica medical exam & respirator standard requirements), we think would outweigh the cost of improving equipment used by workers to meet the requirements of Table 1 for each of the tasks.  We have added some silica courses to our schedule to help you comply with the new standard.  Visit our website for more information.  Happy New Year and Be Safe!  

Monday, September 12, 2016

Its Been 15 Years Since 9/11. 4 Things We Have Learned!

On September 11, 2001, two planes were flown into the twin towers of the World Trade Center.  Those two planes caused the collapse of the buildings and the killing of 2,996 people and injuring over 6,000 others.  When they collapsed, a massive plume of dust was released into the air.  In addition, fires burned at Ground Zero for more than 90 days continuing to spew contaminants into the air.  Then-EPA chief Christine Whitman encouraged workers and residents to head back to Lower Manhattan saying the air was "safe to breathe.."  Former New York City Mayor Rudy Giuliani repeated her claim by saying "to go back to normal" and the air around Ground Zero was "safe as far as we can tell, with respect to chemical and biological agents."  Though some experts, like Mount Sinai's Dr. Philip Landrigan, warned that it was not.

New York City pre-9/11
Will 15 years later we now know that Whitman did not have sufficient information to make that claim and recently has admitted she was wrong.  Studies of the dust have shown significant quantities of carcinogens, irritants, and poisons.  Contaminants like polyaromatic hydrocarbons, dioxin, polychlorinated biphenyls (PCBs), fiberglass, lead, asbestos, volatile organic compounds, etc.  The pH of the dust was basic.  Records have shown the City knew of the hazards of the dust and air.  Expediency of the cleanup and the recovery was more important at Ground Zero, than protecting workers from the toxic dust at the site.  The Occupational Safety and Health Administration (OSHA) was only onsite acting in an advisory role and obviously had little impact on the health consequences of the workers.  As has been printed in numerous articles and pictures many did not wear the respirators they were provided or were provided the incorrect respirator.
Various Respirators Worn During Recovery & Cleanup
The result from this lack of concern regarding the dust?  Will 15 years later we know, that the Centers for Disease Control (CDC) estimates roughly 400,000 people - including rescue and recovery workers, residents, students and school staff, building occupants and passersby - were exposed.   As of July 2016, nearly 75,000 were enrolled in the World Trade Center Health Program (this program was established by the James L. Zadroga 9/11 Health and Compensation Act of 2011).  56,580 of the people enrolled are from the Fire Department of New York and other responders.  8,881 are civilians that were exposed to the toxic dust.  Based on the CDC estimate that means hundreds of thousands of people remain unaccounted for and maybe untreated.  The World Trade Center Health Program is monitoring over 30,000 people and is treating 23,000 people.  On December 18, 2015, President Obama signed a law that reauthorized the Zadroga Act that extended funding for the World Trade Center Health Program through 2090.

English: New York, NY, September 28, 2001 -- D...

Photograph by Andrea Booher taken on 09-28-2001 in New York

The statistics from the program can be found on the CDC website for the program.  These responder statistics show 18,639 members suffer from rhinosinusitis; 16,418 members suffer from gastroesophageal reflux symptoms (GERD); 10,274 members suffer from asthma; 6,532 members suffer from respiratory disorders; 5,639 suffer from post traumatic stress disorder (PTSD), and 1,033 members suffer from prostate cancer.  The New York City Health Department's research found that for all cancer types more cancer cases were found among rescue/recovery workers and civilian survivors compared with the New York State general population between 2007-2011 (11% and 8% respectively).  A 2011 study found that 8 years after 9/11, the prevalence of several respiratory conditions among 10,999 World Trade Center exposed male firefighters remained high in comparison to men in the general population.
    
One World Trade Center
What have we learned?  First, we should heed the warnings of experts, not politicians.  Second, respirators are an essential and mandatory part of any emergency recovery/cleanup.  Third, safety is important but not if we sacrifice health.  Finally, dust generated by disasters, calamities, and emergencies cannot be underestimated in its potential health risk.  Yesterday, was a day to remember and mourn those who died at 9/11.  It was also a day to remember the mistakes made by those who disregarded the dust from the World Trade Center and make sure those mistakes don't happen again!
Related articles

Monday, April 13, 2015

NIH Still Active in Gulf Region Five Years After Oil Spill

NIH Still Active in Gulf Region Five Years After Oil Spill - as we've written in the past, the increase use of respirators during disasters is a necessary step to prevent worker exposure to contaminants that make them sick immediately or in the future.  Respirator use during disasters continues to be optional when it should be mandatory.  Disasters typically involve exposures to asbestos, silica, lead, poly-chlorinated biphenyls (PCBs), etc.  The only way to protect yourself from many of these contaminants is through the use of properly fitted air-purifying respirators.

English: Respirator
English: Respirator (Photo credit: Wikipedia)
A properly fitted air purifying respirator will protect workers for most disaster and demolition exposure issues.  Providing workers with this type of respirator requires that you meet the Occupational Safety and Health Administration's (OSHA) 1910.134 respirator standard.  The standard is not that difficult to comply with.  It does require a plan for respirator use (selecting the type of respirator that will protect workers), medical evaluation for employees using respirators (to ensure they can wear the respirator), fit testing (to ensure the employee wears the correct size and it fits), and training the worker (so they know how to wear a respirator and its limitations).  There are other requirements but these are minimal compared to the four main requirements listed above.

Wednesday, May 23, 2012

Worker Exposure to Silica Significant During Hydraulic Fracturing

Silicosis
Silicosis (Photo credit: Mr. Ducke)
Just read the National Institute of Occupational Safety and Health's (NIOSH's) blog regarding "Worker Exposure to Crystalline Silica during Hydraulic Fracturing".  Obviously, environmental concerns regarding this type of work are being fought in New York on what seems likely a daily or weekly basis.  Usually the arguement for hydraulic fracturing is, job creation and of course energy independence.  However, it is interesting how worker safety is rarely discussed when we talk about hydraulic fracturing.  This study done by NIOSH and discussed on their blog obviously discusses the need to ensure that workers are protected from being overexposed to respirable crystalline silica dust.  Overexposure to respirable crystalline silica dust can lead to the development of the uncurable respiratory disease silicosis, in addition to other diseases.    The typical view that filtering facepiece and half-mask respirators could protect the workers, according to the blog is not sufficient to protect the workers.  Meaning engineering, work practice controls, and administrative controls need to be implemented, making the process more complicated.
Since New York State Department of Environmental Conservation (NYS DEC) is working on drafting regulations for hydraulic fracturing, we hope they also take into account what is needed to protect worker safety on these sites as well as what is needed to protect the environment.
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Wednesday, January 25, 2012

Toxic Dusts - Demolition Implications

We have posted our Winter-Spring 2012 Newsletter on our website.  The main article discusses the implications of toxic dusts on demolition, disaster relief, and emergency response workers.  This is an issue I feel really strongly about and if my recommendations are taken seriously, maybe there will be no need for any Zadroga Bills to deal with 9/11 type illnesses in the future.
Demolition, Emergency Response, and Disaster Relief Workers should wear respirators when they respond.

Related articles
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Wednesday, August 10, 2011

Rudy Giuliani and Air Quality After 9/11: Part 1 & Part 2

Mike Metzer, from the Environmental Protection...Image via WikipediaAfter listening and reading this newscast I found it interesting how everyone is pointing at the federal government experts (Giuliani, Cohen, etc.), as the reason why the first responders were allowed to expose themselves to the asbestos and other hazardous materials on the site.  A very interesting two part, newscast by WNYC titled Rudy Giuliani and Air Quality After 9/11: Part 1 & Part 2.  The 9/11 cleanup was a huge failure on the part of the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA).  Especially, OSHA who should've been on the site making sure workers were wearing respirators and wearing them properly.  OSHA crowed about 0 injuries at the site after the cleanups were done.  Where are they now, that we know that some 20,000 workers at the site are ill from their exposure to the contaminants at 9/11?
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Thursday, February 03, 2011

OSHA Respirator Safety Video



This Occupational Safety and Health Administration (OSHA) Respirator Safety Video is a very good introductory video on respirator donning and doffing.  Probably will add this to our training classes since it is a very good entry level and refresher video.  The video is available in spanish, too.

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Thursday, December 16, 2010

OSHA Orders John Galt Corp. to Compensate Worker Fired After Raising Health and Safety Issues at the Deutsche Bank Building in NYC

Respirators Should Be Fit Tested Before Use
On Thursday, October 14, 2010, the U.S. Department of Labor obtained a consent judgment ordering The John Galt Corp. and two of its former managers, Mitchel Alvo and Dorota Lebkowska, to compensate a worker who was fired for raising a health and safety issue during an asbestos removal project the defendants oversaw at the former Deutsche Bank Building at 130 Liberty St. in Manhattan, New York.
According to the press release the worker filed a complaint with the department's Occupational Safety and Health Administration in August 2006, alleging that he had been fired after requesting additional respirator filter cartridges for himself and for fellow workers performing asbestos removal at the site.  OSHA's investigation found merit to the complaint.  The department's Regional Office of the Solicitor in New York filed suit in the U.S. District Court for the Southern District of New York after the defendants refused to reinstate and compensate the worker.
As a result of that legal action, the defendants have signed a consent judgment that orders them to pay the worker $55,000 in back wages and expunge all references to suspension or dismissal from his personnel file.  The judgment also prohibits the defendants from discriminating against employees who file a complaint with OSHA, participate in an OSHA inspection or otherwise exercise their rights under Section 11(c) of the Occupational Safety and Health Act.
"Terminating workers who raise legitimate safety and health issues is unacceptable," said Robert Kulick, OSHA's regional administrator in New York.  "Intimidating workers into a dangerous silence can mask hazardous and potentially deadly conditions.  Employers should be aware that we will pursue appropriate legal remedies in such cases."
Section 11(c) of the OSH Act protects employees' rights to file a complaint with OSHA or to bring safety and health issues to the attention of their employers without fear of termination or other reprisal.  OSHA also enforces statutes protecting employees who report violations of various railway, securities, trucking, airline, nuclear power, pipeline, environmental, public transportation and consumer product safety laws.  Detailed information is available online at: http://www.whistleblowers.gov/.
Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees.  OSHA's role is to assure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance.  For more information, visit http://www.osha.gov/.

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Monday, November 15, 2010

Importance of Respiratory Protection at Demolition or Disaster Sites

The Newsday story "Ground Zero settlement tally delayed as deadline hits" had the above image as part of the story.  Based on this image we see workers at the sight wearing two different types of respirators and one worker wearing only a neckerchief (or something similar).  The predominant respirator worn in this picture is the filtering facepiece respirator.  This respirator is primarily meant to handle nuisance dusts and is not intended in handling hazardous materials or chemical vapors.  It has two straps and most have a metal nose clip that is meant to achieve a better seal around the nose.  It seems most are wearing these correctly except the individual in the background which appears to have only one strap on.  For this individual, the respirator is probably not providing the intended protection.  Three individuals have the half-mask air purifying respirators two are wearing them properly while the third is wearing it as jewelry.  The cartridges being worn are high efficiency particulate air (HEPA) filters.  The HEPA filter is the highest level filter you can get for particulates and will filter out asbestos, lead, and other hazardous dusts.  However, this filter will not filter chemical vapors.  Based on the contaminants previously published from 9/11, the standard respirator should have been a half-mask air purifying respirator with organic vapor, acid gas, and P100 (HEPA) filters.  So all the respirators in the picture were the wrong type to protect them, based on published reports of the contaminants at the 9/11 work sight.  Hopefully, the regulatory and disaster community learned the lessons of 9/11 and in the future we can ensure workers at the sight wear the proper respirator and wear it properly.  Maybe then in the future we will not have to pay these claims on people who got sick for not wearing a respirator or wearing the wrong type.
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Friday, September 17, 2010

9/11 Responder Helping First Responders And War Veterans Heal


Helping first responders heal from Long Island Business News on Vimeo.


John Sferazo, former 9/11 First Responder Ironworker, founded the non-profit organization American Greenlands Restoration.  John Sferazo as a first responder knows what 9/11 first responders went through, he himself suffers from severe lung problems and post-tramautic stress syndrome.  The American Greenlands Restoration uses 1,000 acres of land in Maine as a wildlife and nature retreat to help 9/11 first responders and veterans from the Iraq and Afganistan Wars sufferring from psychological and physical disabilities, heal through Nature Therapy.  Just a warning the video is not very good.  But you can hear the report all the same.
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That Time of Year! Conferences, Posting Requirements, and OSHA Violations Increased!

It's that time of year again. We're between conferences.  February 15-16, 2024 was the Professional Abatement Contractors of New Yor...