Suggested-No-Adverse-Response Levels

ERA ODW NAS Individual lifetime cancer risk 10 Suggested No-Adverse-Response Level 60 Aig/L ... 

Office of Pesticides and Toxic Substances OSW = Office of Solid Waste OWRS = Office of Water Regulations and Standards RfD = Reference Dose SNARL = Suggested No Adverse Response Level SOCMI =... 

OSHA = Occupational Safety and Health Administration OSW = Office of Solid Waste OTS = Office of Toxic Substances OWRS = Office of Water Regulations and Standards PEL = Permissible Exposure Level PIC = Products of Incomplete Combustion REL = Recommended Exposure Level SIP = State Implementation Plan SNARL = Suggested No Adverse Response Level STEL = Short-term Exposure Limit TLV = Threshold Limit Value TWA = Time-Weighted Average ... 

Water samples from rural residences close to the experimental sites were also analyzed. Three shallow domestic wells contaminated by aldicarb residues above the suggested no adverse response level of 10 ppb were deepened to examine whether the water quality would be improved. 

The National Academy of Science/National Research Council (NAS/NRC) gives a suggested no adverse response level (SNARL) for aldicarb in drinking water of 7 ppb (22). The USA Environmental Protection Agency (EPA) has recommended a "Health advisory level of 10 ppb. The California Department of Health Services has adopted EPA s limit as an action level (24). 

Simazine has received considerable notoriety based upon the finding of levels equal to or less than 3.5 ppb in six out of 217 wells evaluated in a study in California [17]. These six wells are suspected of being point source contaminations [18]. Based upon the toxicity data and its use in algae and weed control in ponds, simazine has a potable water tolerance of 10 ppb. It has a Suggested No Adverse Response Level [SNARL] established by the National Academy of Sciences of 1,500 ppb. However, because of the... 

The NAS used the ADI to establish an acceptable maximum limit designated the Suggested No Adverse Response Level (SNARL). The NAS assumed 20% of the ADI was available for water contribution... 

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