Arsenic Exposure and Cancer Risk Reduction with Local Ordinance Requiring Whole-House Dual-Tank Water Treatment Systems
| Autor: | Megan Rockafellow-Baldoni, Qingyu Meng, Steven E. Spayd, Mark G. Robson, Jun-Yan Hong, Pamela Ohman-Strickland |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Health Toxicology and Mutagenesis Ecological Modeling chemistry.chemical_element 010501 environmental sciences 01 natural sciences Pollution Water consumption Article 03 medical and health sciences 030104 developmental biology chemistry Environmental health Maximum Contaminant Level Environmental science Water treatment Cancer risk ARSENIC EXPOSURE Arsenic 0105 earth and related environmental sciences |
| Popis: | Arsenic, a known human carcinogen, occurs naturally in groundwater in New Jersey and many other states and countries. A number of municipalities in the Piedmont, Highlands, and Valley and Ridge Physiographic Provinces of New Jersey have a high proportion of wells that exceed the New Jersey maximum contaminant level (MCL) of 5 µg/L. Hopewell Township, located in Mercer County and the Piedmont Province, has a progressive local ordinance which requires the installation of dual-tank, point-of-entry treatment systems on affected wells.Thisprovided a unique study opportunity. Of the 55 homes with dual-tank POE treatment systems recruited into this study, 51 homes (93%) had arsenic levels under the MCL at the kitchen sink, regardless of years in service and/or maintenance schedule adherence. Based on the study participants' water consumption and arsenic concentrations, we estimate that Hopewell's arsenic water treatment ordinance, requiring POE dual-tank arsenic treatment, reduced the incidence of excess lifetime (70-year) bladder and lung cancers from 121 (1.7 cancer cases/year) to 16 (0.2 cancer cases/year) preventing 105 lifetime cancer cases (1.5 cases/year). Because the high risk of cancer from arsenic can be mitigated with effective arsenic water treatment systems, this ordinance should be considered a model for other municipalities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|