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Thursday, January 20, 2011

EPA Removes Saccharin As A Hazardous Waste

2D structure of artificial sweetener saccharin
Saccharin 2-D Formula
In December, 2010 the Environmental Protection Agency (EPA) amended its regulations regarding saccharin as a hazardous waste.  Saccharin, an artificial sweetener in the form of a white crystalline powder, is 300 times sweeter than sucrose or sugar.  It is typically an ingredient in diet soft drinks, juices, sweets, and chewing gum.  Saccharin can also be found in cosmetics and pharmaceuticals.
EPA amended its regulations under the Resource Conservation and Recovery Act (RCRA) to remove saccharin and its salts from the lists of hazardous constituents and commercial chemical products which are hazardous wastes when discarded or intended to be discarded.  In addition, EPA amended the regulations under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to remove saccharin and its salts from the list of hazardous substances.  EPA responded to a petition submitted by the Calorie Control Council (CCC) to remove saccharin and its salts from RCRA and CERCLA, EPA will no longer list these substances as hazardous on the above mentioned lists.  EPA granted CCC’s petition based on a review of the evaluations conducted by key public health agencies concerning the carcinogenic and other potential toxicological effects of saccharin and its salts.  In addition, EPA assessed the waste generation and management information for saccharin and its salts, concluding that the wastes do not meet the criteria for hazardous waste regulations.
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Wednesday, January 19, 2011

OSHA Acts To Protect Residential Roofing Workers

Fall Protection established for this roof project.
On December 22, 2010, the Occupational Safety and Health Administration (OSHA) announced a new directive withdrawing a former one that allowed residential builders to bypass fall protection requirements.  The directive being replaced, issued in 1995, initially was intended as a temporary policy and was the result of concerns about the feasibility of fall protection in residential building construction.  However, there continues to be a high number of fall-related deaths in construction, and industry experts now feel that feasibility is no longer an issue or concern.
"Fatalities from falls are the number one cause of workplace deaths in construction.  We cannot tolerate workers getting killed in residential construction when effective means are readily available to prevent those deaths," said Assistant Secretary of Labor for Occupational Safety and Health Dr. David Michaels.  "Almost every week, we see a worker killed from falling off a residential roof.  We can stop these fatalities, and we must."
The National Association of Home Builders recommended rescinding the 1995 directive, as did OSHA's labor-management Advisory Committee for Construction Safety and Health; the AFL-CIO; and the Occupational Safety and Health State Plan Association, which represents the 27 states and territories that run their own occupational safety and health programs.
According to data from the department's Bureau of Labor Statistics, an average of 40 workers are killed each year as a result of falls from residential roofs.  One-third of those deaths represent Latino workers, who often lack sufficient access to safety information and protections.  Latino workers comprise more than one-third of all construction employees.
OSHA's action rescinds the Interim Fall Protection Compliance Guidelines for Residential Construction, Standard 03-00-001.  Prior to the issuance of this new directive, Standard 03-00-001 allowed employers engaged in certain residential construction activities to use specified alternative methods of fall protection rather than the conventional fall protection required by the residential construction fall protection standard. With the issuance of today's new directive, all residential construction employers must comply with 29 Code of Federal Regulations 1926.501(b)(13).  Where residential builders find that traditional fall protection is not feasible in residential environments, 29 CFR 1926.501(b)(13) still allows for alternative means of providing protection.
Construction and roofing companies will have up to six months to comply with the new directive.  OSHA has developed training and compliance assistance materials for small employers and will host a webinar for parties interested in learning more about complying with the standard. To view the directive and for more information, visit http://www.osha.gov/doc/residential_fall_protection.html.

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Tuesday, January 18, 2011

EPA Revises Lead Ambient Air Monitoring Requirements


Air Quality Testing for several parameters.
On December 14, 2010, the Environmental Protection Agency (EPA) published the final lead (Pb) ambient air monitoring requirements.  The purpose of this revision was to expand the nation’s lead monitoring network to better assess compliance with the revised National Ambient Air Quality Standards (NAAQS) for lead issued in 2008.  In 2008, EPA substantially strengthened the lead NAAQS by revising the level of the primary (health-based) standard from 1.5 micrograms per cubic meter (μg/m3) to 0.15 μg/m3, measured as total suspended particles (TSP).  The agency revised the secondary (welfare-based) standard to be identical to the primary standard.  EPA in this final rule (Dec. 2010) also changed the emission threshold that state monitoring agencies (such as New York State Department of Environmental Conservation [NYS DEC]) must use to determine if an air quality monitor should be placed near an industrial facility that emits lead. The new emission threshold is 0.5 tons per year (tpy), reduced from the previous threshold of 1.0 tpy. Any new monitors located near an emissions source must be operational no later than one year after this rule is published in the Federal RegisterEPA maintained a 1.0 tpy lead emission threshold for airports.  However, EPA is requiring a 1-year monitoring study of 15 additional airports (beyond those currently required to monitor at the existing 1.0 tpy emission threshold) for the New York area this includes Brookhaven and Republic airports. The study will help EPA determine whether airports that emit less than 1.0 tpy have the potential to cause the surrounding areas to exceed the lead NAAQS of 0.15 micrograms per cubic meter (μg/m3).  The monitors participating in the study must be operational no later than one year after this rule is published in the Federal Register.
EPA is also requiring lead monitoring in large urban areas (Core Based Statistical Areas, or CBSAs, with a population of 500,000 people or more).  Monitors will be located along with multi-pollutant ambient monitoring sites (known as the “NCore network”).  Lead monitoring at these sites will begin January 1, 2012.
  • The NCore network will consist of approximately 80 monitoring sites, of which 63 will be in large urban areas.  The requirement to add these monitors replaces an existing requirement to place lead monitors in each CBSA with a population of 500,000 or more people.
The above revisions were made based on comments received on EPA’s proposed revisions.
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Sunday, January 16, 2011

Asbestos Controversy in Troy New York.

Demolition of the Old Troy City Hall in Troy, New York has caused controversy regarding the asbestos discovered in the building.  It seems based on the news report it seems like they got caught doing demolition before removal.  The City Engineer says he is doing exploratory demolition and New York State Department of Labor approved it.  Is he looking for more asbestos?  When was this building built?  Have they sampled all 46 of the presumed and suspect asbestos materials that is on the New York State Industrial Code Rule 56 list?  These are just some of the questions I have regarding this demolition.  Additional reports have mentioned a limited asbestos survey.  Why is it limited?  What hasn't been sampled?
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Wednesday, January 12, 2011

NIOSH Science Blog Discusses Helical CT Scans and Lung Cancer Screening

This is an x-ray image of a chest. Both sides ...Image via WikipediaThe National Institute of Occupational Safety and Health's (NIOSH) Science blog recently discussed the reported findings regarding the use of helical CT scans for lung cancer screening.  The National Cancer Institute (NCI) launched the National Lung Screening Trial (NLST) in 2002 to compare the effects of two screening procedures, low-dose helical computerized tomography (CT) and chest x-ray, in reducing lung cancer mortality in current and former heavy smokers aged 55 to 74.   The preliminary results from this study indicated this relatively new form of screening using helical CT demonstrated fewer lung cancer deaths among individuals at high risk of lung cancer who received this screening than among a similar group screened with chest radiography (chest x-rays or CXRs).  NIOSH has great interest in this finding, and there is hope that this might provide new approaches to cancer screening among workers with increased risk for lung cancer because of past occupational exposures.


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