Canadian Water Quality Guidelines For Atrazine

"A literature review was conducted on the uses, fate, and effects of atrazine on raw water for drinking water supply, freshwater aquatic life, agricultural water uses, recreational water quality and aesthetics, and industrial water supplies"--Abstract.

Atrazine is a triazine herbicide used extensively in Canada for weed control. This report describes the chemical's physical/chemical characteristics, its use & sources in the environment, environmental concentrations detected in water & crops, analytical methods & water treatment technology, and health effects (metabolism, health effects in humans and in experimental animals and in vitro, genotoxicity, reproductive effects, hormone imbalances). It then presents a guideline for the maximum acceptable concentration of atrazine in drinking water, along with discussion of the evidence for its risk classification & the rationale for the guideline.

Editions of these guidelines are prepared following a thorough review of the scientific, technical and medical literature on new parameters and on parameters whose guidelines require revision. This 6th edition includes the guidelines approved by the Conference of Deputy Ministers of Health as of March 1995. No evidence has been presented that would warrant changing the values proposed in the last edition. These values have, therefore, been adopted and are presented in this edition as confirmed guidelines. The guidelines and recommendations listed are intended to apply to all drinking water supplies, public and private, however, they should not be regarded as legally enforceable standards unless promulgated as such by the appropriate agency. This document provides an explanation of terms, a description of microbiological characteristics, chemical and physical parameters, and radiological characteristics. It also includes a list of parameters under review or scheduled for review.

'A literature review was conducted on the uses, fate, and effects of simazine on raw water for drinking water supply, freshwater aquatic life, agricultural uses, recreational water quality and aesthetics, and industrial water supplies"--Abstract.

Water quality guidelines for permissable amounts of carbofuran, glyphosate, and atrazine in raw water for drinking supply, recreational water, freshwater for aquatic life, agricultural uses, and industrial water supplies. Background information is given on uses and production, sources and pathways, environmental concentrations, and forms and fates in the aquatic environment for each chemical.

"A review of the available literature on the use, environmental fate, persistence and toxicity of the triazine herbicide cyanazine was conducted"--Abstract.

"A review of the literature concerning the uses, sources to the environment, environmental fate and behaviour, and toxicity of the triazine herbicide metribuzin and its effects on raw drinking water supply, freshwater aquatic life, agricultural water uses, recreational water quality and aesthetics, and industrial water supplies were examined. From the information summarized in this report, guidelines for metribuzin were formulated for the protection of these specific water uses "--Abstract