Chemicals of concern definition

Chemicals of concern or "COC" means chemicals that may pose a threat to human health and the environment.

Chemicals of concern means the compounds derived from petroleum-regulated substances which

Chemicals of concern means the compounds derived from petroleum-regulated substances which are subject to evaluation for purposes of applying risk-based corrective action decision making. These compounds are benzene, ethylbenzene, toluene, and xylenes (BTEX) and naphthalene, ben- zo(a)pyrene, benz(a)anthracene, and chrysene. (NOTE: Measurement of these last four constituents may be done by a conversion method from total extractable hydrocarbons, see subrule 135.8(3).)

Examples of Chemicals of concern in a sentence

• Chemicals of concern are measured directly and the quantitative toxicological basis for their maximum acceptable values is usually known.

• All assessment, corrective action, data analysis and report development required under rules 567—135.6(455B) to 567—135.12(455B) must be conducted by or under the supervision of a certified groundwater professional in accordance with these rules and department guidance as specified.135.8(3) Chemicals of concern.

• All assessment, corrective action, data analysis and report development required under rules 135.6(455B) to 135.12(455B) must be conducted by or under the supervision of a certified groundwater professional in accordance with these rules and department guidance as specified.135.8(3) Chemicals of concern.

• Chemicals of concern typically used in the uranium in situ leach facilities are identified in NUREG/CR–6733 (NRC, 2001).

• Chemicals of Concern – within 18 months of contract signature, any contracted supplier will be required to limit the UC catalog of goods (to the UC), to items which do not contain Chemicals of concern, as noted within Exhibit 4 -, unless an exception for specific product is noted.

More Definitions of Chemicals of concern

Chemicals of concern means chemicals that may pose a

Chemicals of concern means the specific compounds and their breakdown products that are identified for evaluation in the risk-based corrective action process. Identification may be based on their historical and current use at the site, detected concentrations in environmental media, and their mobility, toxicity, and persistence in the environment.

Chemicals of concern means those chemicals that have been designated as such by the division in a chemicals of concern list. The chemicals of concern shall be chemicals that are constituents of or result from the degradation of petroleum product(s) and/or additives released from regulated petroleum underground storage tanks. The list will include those chemicals with the highest risk to human health and/or the environment. The chemicals of concern for diesel fuel will be different from the chemicals of concern for gasoline.

Chemicals of concern means the chemical or specific constituents of the petroleum released that are identified for evaluation during the corrective action process.

Chemicals of concern means chemicals which Canada and Ontario agree are of concern to human health or the environment in the Great Lakes and should be considered a priority for specific action(s). A chemical of concern could be considered for nomination under the Chemicals of Mutual Concern Annex of the Canada‐United States Great Lakes Water Quality Agreement;

Chemicals of concern means the compounds derived from petroleum-regulated substances which are subject to evaluation for purposes of applying risk-based corrective action decision making. These compounds are benzene, ethylbenzene, toluene, and xylenes (BTEX) and naphthalene, benzo(a)pyrene, benz(a)anthracene, and chrysene. (N OTE: Measurement of Concentration values for these last four constituents may be done are determined by a conversion method from total extractable hydrocarbons, see subrule 135.8(3).)

Chemicals of concern means the specific compounds and their breakdown products that are identified