(AP)—Tests done at Superstorm Sandy cleanup sites show that the level of contaminants does not exceed federal workplace exposure limits.
The Occupational Safety and Health Administration released initial results from tests of dozens of cleanup sites in New York and New Jersey. The agency tested for employee exposure to contaminants.
While some of the sites showed the presence of contaminants including asbestos, carbon monoxide and lead, none were above OSHA's permissible exposure limits.
The sites will continue to be monitored. The agency warned that the results aren't an "all clear" to employers. OSHA didn't test sites that were previously known to be contaminated.
The agency says that at sites with known chemical spills, it's up to the employer to report exposure and assess the situation before employees return to work.
Explore further: Huge tract of Australia in 'biggest ever drought'