Environmental

Recent Posts

OEHHA proposes to list "emissions from coal combustion" under California's Proposition 65
Posted on 1 Aug 2013 by Thomas H. Clarke, Jr.

OEHHA, the State regulatory agency overseeing the administration of Propositon 65, has announced its intent to list "emissions from the combustion of coal" as a carcinogen. See http://www.oehha.ca.gov/prop65/CRNR_notices/admin_listing/intent_to_list... Read More

California Attorney General seeks to limit scope of "public interest" releases in Prop. 65 settlements
Posted on 29 Jan 2012 by Thomas H. Clarke, Jr.

California's Proposition 65 ( Sections 25249.5 et seq Health & Safety Code ) is an unusual regulatory scheme. Lawsuits may be filed by private individuals. Plaintiffs are not required to have standing. The law only addresses a warning requirement;... Read More

California Court of Appeal upholds use of alternative listing methodologies for Prop. 65
Posted on 14 Jun 2011 by Thomas H. Clarke, Jr.

There are several methods by which a "chemical" (a term of art) can be listed under California's Proposition 65. See, for example, http://www.rmkb.com/index.cfm/publications/publication-details/?pkid=253 (pp. 3-5). In California Chamber... Read More

EPA Releases Final Health Assessment for Tetrachloroethylene (aka Perc)
Posted on 15 Feb 2012 by Thomas H. Clarke, Jr.

EPA has posted its final health assessment for tetrachloroethylene (aka perc) to its Integrated Risk Information System (IRIS). Perc is widely used in the dry cleaning industry, although states such as California are requiring that it be phased out... Read More

Formaldehyde is found in a broad range of clothing and household products
Posted on 8 Feb 2012 by Thomas H. Clarke, Jr.

Formaldehyde is a Group 1 human carcinogen. Search at Toxnet Toxicology Data Network . In the past, exposure to the populace was often linked to its presence in glues and binders used in furniture and paneling, although it is also found in shampoo, conditioners... Read More

California adds methyl isobutyl ketone, a widely used solvent, to the Prop. 65 list of chemicals
Posted on 10 Nov 2011 by Thomas H. Clarke, Jr.

Methyl isobutyl ketone (CAS No. 108-10-1) is a very widely used solvent. The Office of Health Hazard Assessment (known affectionately as OEHHA [o-we-hah]) published a notice Sept. 16, 2011, that it intended to list MIK pursuant to the "labor code... Read More

EPA may be preparing tough report on dioxins in food
Posted on 10 Feb 2012 by Thomas H. Clarke, Jr.

Dioxins collectively refers to hundreds of chemical compounds that share certain structures and biological characteristics. See Dioxin . Dioxins fall into three closely related groups: the chlorinated dibenzo-p-dioxins (CDD's) chlorinated dibenzofurans... Read More

EPA Releases Final Health Assessment for Tetrachloroethylene (aka Perc)
Posted on 15 Feb 2012 by Thomas H. Clarke, Jr.

EPA has posted its final health assessment for tetrachloroethylene (aka perc) to its Integrated Risk Information System (IRIS). Perc is widely used in the dry cleaning industry, although states such as California are requiring that it be phased out... Read More

California Court of Appeal upholds use of alternative listing methodologies for Prop. 65
Posted on 14 Jun 2011 by Thomas H. Clarke, Jr.

There are several methods by which a "chemical" (a term of art) can be listed under California's Proposition 65. See, for example, http://www.rmkb.com/index.cfm/publications/publication-details/?pkid=253 (pp. 3-5). In California Chamber... Read More

Formaldehyde is found in a broad range of clothing and household products
Posted on 8 Feb 2012 by Thomas H. Clarke, Jr.

Formaldehyde is a Group 1 human carcinogen. Search at Toxnet Toxicology Data Network . In the past, exposure to the populace was often linked to its presence in glues and binders used in furniture and paneling, although it is also found in shampoo, conditioners... Read More

California adds methyl isobutyl ketone, a widely used solvent, to the Prop. 65 list of chemicals
Posted on 10 Nov 2011 by Thomas H. Clarke, Jr.

Methyl isobutyl ketone (CAS No. 108-10-1) is a very widely used solvent. The Office of Health Hazard Assessment (known affectionately as OEHHA [o-we-hah]) published a notice Sept. 16, 2011, that it intended to list MIK pursuant to the "labor code... Read More

California Attorney General seeks to limit scope of "public interest" releases in Prop. 65 settlements
Posted on 29 Jan 2012 by Thomas H. Clarke, Jr.

California's Proposition 65 ( Sections 25249.5 et seq Health & Safety Code ) is an unusual regulatory scheme. Lawsuits may be filed by private individuals. Plaintiffs are not required to have standing. The law only addresses a warning requirement;... Read More

EPA may be preparing tough report on dioxins in food
Posted on 10 Feb 2012 by Thomas H. Clarke, Jr.

Dioxins collectively refers to hundreds of chemical compounds that share certain structures and biological characteristics. See Dioxin . Dioxins fall into three closely related groups: the chlorinated dibenzo-p-dioxins (CDD's) chlorinated dibenzofurans... Read More