A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of Recommendations for the Fourth Contaminant Candidate List
An independent set of recommendations for the Fourth Drinking Water Contaminant Candidate List (CCL4) was developed by prioritizing compounds with weightings based on data quality for occurrence and toxicity. This approach used key information including the number of studies used in the analysis and the associated spread and variability of the particular attributes between data sources, and resulted in four recommendation groups:
• Group 1: Top priority for inclusion on CCL4—seven compounds plus one “super group” of disinfection by‐products
• Group 2: Include on CCL4 but insufficient information for a regulatory determination (need occurrence data)—11 compounds
• Group 3: Could be included on CCL4 only if a future negative regulatory determination will be made—32 compounds
• Group 4: No need to consider further in the CCL4 process—55 compounds
Having too many contaminants on the CCL results in a fragmented research agenda; conversely, some compounds might be missed on a CCL that is too small.
Development of Recommendations for the Fourth Contaminant Candidate List
An independent set of recommendations for the Fourth Drinking Water Contaminant Candidate List (CCL4) was developed by prioritizing compounds with weightings based on data quality for occurrence and toxicity. This approach used key information including the number of studies used in the analysis and the associated spread and variability of the particular attributes between data sources, and resulted in four recommendation groups:
• Group 1: Top priority for inclusion on CCL4—seven compounds plus one “super group” of disinfection by‐products
• Group 2: Include on CCL4 but insufficient information for a regulatory determination (need occurrence data)—11 compounds
• Group 3: Could be included on CCL4 only if a future negative regulatory determination will be made—32 compounds
• Group 4: No need to consider further in the CCL4 process—55 compounds
Having too many contaminants on the CCL results in a fragmented research agenda; conversely, some compounds might be missed on a CCL that is too small.
Development of Recommendations for the Fourth Contaminant Candidate List
Roberson, J. Alan (author) / Adams, Craig (author) / Bench, Ryan (author) / Rosen, Jeffrey S. (author)
Journal ‐ American Water Works Association ; 107 ; E509-E522
2015-10-01
14 pages
Article (Journal)
Electronic Resource
English
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