In 1996 recommended Action Values for 24 hours indoor exposure to PCB was established in Germany. Annual mean action value was 300 ng/m3, and intervention value was 3000 ng/m3 (3 µg/m3). The PCB concentration was calculated as PCB6 multiplied with a corrections factor of 5. In 2009 the Danish National Board of Health (now called the Danish Health and Medicines Authority) introduced two recommended action levels for PCB in indoor air. Levels >3000 ng/m3 caused immediate need for action, and exposure to levels between 300 and 3000 ng/m3 were considered to be a possible health risk and an action plan would be needed to bring levels down. It was later specified that levels between 2000 and 3000 ng/m3 required action before a year and lower levels within two years. These recommended Action Values have now been renewed with some more guidance.
Monthly Archives: January 2014
A new report: "Assessing Global Land Use: Balancing Consumption with Sustainable Supply" has been released by the Land and Soils Working Group of the International Resource Panel on 24 January 2014. The report explores how the management of land-based...Read More
ANSES is the French Governmental Agency for Food, Environmental and Occupational Health & Safety created in 2010 and located in a suburb to Paris (Maisons-Alfort) employing about 700 people. ANSES makes chemical monitoring, diet studies and chemical risk assessments. ANSES is also responsible for a laboratory...Read More
PCBs (polychlorinated biphenyls) constitute 209 different chlorinated congeners with different physico-chemical properties depending on chlorine content and structure. More than 100 of these congeners were previously produced as part of commercial PCB mixtures, with a total World production in excess of 1 million tons. The total PCB use in Denmark in the period 1950-1983 has...Read More