EPA: Evaluating Risk of Existing Chemicals Under TSCA
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EPA: Evaluating Risk of Existing Chemicals Under TSCA

First 10 chemicals for evaluation of potential risks to human health and the environment

The EPA has announced the first 10 chemicals that will be evaluated for potential risks to human health and the environment.

Under TSCA, the EPA is now required to evaluate existing chemicals to determine whether they “present an unreasonable risk of injury to health or the environment.” The EPA is committed to processing these substances in a timely manner. They will start the risk evaluation process for the first 10 chemicals and release a document providing the scope of each chemical including hazard(s), exposure(s), conditions of use, and the potentially exposed or susceptible subpopulation(s) the EPA plans to consider for the evaluation. The EPA is required to complete these risk evaluations within three years. If it is determined a chemical presents an unreasonable risk, the risk(s) must be mitigated within two years.

Below is a list of the first 10 chemicals for consideration. These chemicals were selected from a list of 90 chemicals on the 2014 Update to the TSCA Work Plan. The criteria for selection were based on the chemical hazards, public’s potential exposure, environmental persistence and bioaccumulation, as well as recommendations from the public, industry, environmental and public health groups, and members of Congress. 

 

Chemical

Exposure information from 2014 Work Plan

Hazard Information from 2014 Work Plan

1,4-Dioxane

Used in consumer products. Present in groundwater, ambient air and indoor environments. High reported releases to the environment.

Possible human carcinogen

1-Bromopropane

Used in consumer products. Present in drinking water, indoor environments, surface water, ambient air, groundwater, soil. Estimated to have high releases to the environment.

Possible human carcinogen

Asbestos

Used in chlor-alkali production,consumer products, coatings and compounds, plastics, roofing products, and other applications. Also found in certain imported products such as brakes, friction products, gaskets, packing materials and building materials.

Known human carcinogen; Acute and chronic toxicity from inhalation exposures

Carbon Tetrachloride

Used in commercial/industrial products. Present in biomonitoring, drinking water, indoor environments, surface water, ambient air, groundwater, soil. Highreported releases to the environment.

Probable human carcinogen

Cyclic Aliphatic Bromide Cluster (HBCD)

Flame retardant in extruded polystyrene foam, textiles, and electrical and electronic appliances.

Acute aquatic toxicity

Methylene Chloride

Used in consumer products. Present in drinking water, indoor environments, ambient air, groundwater, and soil.

Probable human carcinogen

N-Methylpyrrolidone (NMP)

Used in consumer products. Present in drinking water and indoor environments. High reported releases into the environment.

Reproductive toxicity

Pigment Violet 29 (Anthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetrone)

Used in consumer products. Estimated to have moderate releases to the environment.

Aquatic toxicity

Trichloroethylene (TCE)

Used in consumer products. Present in drinking water, indoor environments, surface water, ambient air, groundwater, and soil.

Probable human carcinogen

Tetrachloroethylene (also known as perchloroethylene)

Used in consumer products and dry cleaning. Present in biomonitoring, drinking water, indoor environments, ambient air, groundwater, soil. High reported releases to the environment.

Probable human carcinogen

Source: https://www.epa.gov/

For each risk evaluation the EPA completes, TSCA requires that EPA begin another risk evaluation. By the end of 2019, the EPA must have at least 20 chemical risk evaluations ongoing at any given time. Additionally, the law requires at least half of all EPA-initiated risk evaluation be drawn from the TSCA Work Plan until all 90 chemicals have been reviewed.


 

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