Canadian Council of Ministers
of the Environment

Le Conseil canadien des ministres
de l'environnement

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Methylchlorophenoxyacetic acid (4-Chloro-2-methyl phenoxy acetic acid; 2-Methyl-4-chloro phenoxy acetic acid)

Synonyms and/or acronyms: MCPA
CASRN: 94746
Parameter 1: ORGANIC
Parameter 2: Pesticides

Water Quality for the Protection of Aquatic Life

Further documentation on these guidelines can be found in the Canadian Environment Quality Guidelines.
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Freshwater

Concentration (µg/L)

2.6

Interim guideline.

Date

1995

Marine

Concentration (µg/L)

4.2

Interim guideline.

Date

1995

Water Quality for the Protection of Agriculture

Further documentation on these guidelines can be found in the Canadian Environment Quality Guidelines.
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Irrigation

Concentration (µg/L)

0.025

Guideline values slightly modified from CCREM 1987 + Appendixes due to re-evaluation of the significant figures.

Date

1995

Livestock

Concentration (µg/L)

25

Interim guideline.

Date

1995

Sediment Quality for the Protection of Aquatic Life

Freshwater

Concentration (µg/kg dry weight) - ISQG

No data

Concentration (µg/kg dry weight) - PEL

No data

Date

No data

Marine

Concentration (µg/kg dry weight) - ISQG

No data

Concentration (µg/kg dry weight) - PEL

No data

Date

No data

Soil Quality for the Protection of Environmental and Human Health

Concentration (mg/kg dry weight) - Agricultural

No data

Concentration (mg/kg dry weight) - Residential / parkland

No data

Concentration (mg/kg dry weight) - Commercial

No data

Concentration (mg/kg dry weight) - Industrial

No data

Date

No data

Tissue Residue Quality for the Protection of Widlife Consumer of Aquatic Biota

Concentration (µg/kg diet wet weight)

No data

Date

No data