National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
n-Butylbenzene
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
n-Butylbenzene is an intermediate for chemical manufacturing and a raw material for liquid crystals.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 10 |
- |
- |
| Water utilities | 23 |
- |
- |
| People Served | 180,687 |
- |
- |
Health Concerns for n-Butylbenzene:
- Endocrine disruption
- Ecotoxicology
- Persistence and bioaccumulation
- Organ system toxicity (non-reproductive)
n-Butylbenzene Exposure by State
Water utilities in 10 states have reported detecting n-Butylbenzene in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with n-Butylbenzene contamination | |
|---|---|---|
| Systems | Population | |
| California | 2 | 108,199 |
| New Mexico | 1 | 56,000 |
| Nebraska | 1 | 6,591 |
| Missouri | 3 | 3,646 |
| New York | 6 | 3,299 |
| North Carolina | 6 | 1,560 |
| Vermont | 1 | 825 |
| Rhode Island | 1 | 292 |
| Washington | 1 | 250 |
| Texas | 1 | 25 |
| Total | 23 | 180,687 |
The Most Polluted Communities
23 water utilities reported detecting n-Butylbenzene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average n-Butylbenzene level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Cedar Hollow Mobile Home Park Wappingers Falls, NY | 200 | 2 of 2 | 12.25 ppb (0.5 to 24 ppb) |
| 2 | Jericho Underhill Water Underhill, VT | 825 | 1 of 7 | 2.03 ppb (0 to 14.2 ppb) |
| 3 | Collingwood Associates, L.P. King Of Prussia, NY | 360 | 1 of 3 | 1.13 ppb (0 to 3.4 ppb) |
| 4 | Metz Water Association Spokane, WA | 250 | 2 of 3 | 0.8 ppb (0 to 1.3 ppb) |
| 5 | Bedford Hills/Taconic Corr. Facilities Bedford Hills, NY | 1,100 | 1 of 1 | 0.5 ppb (0.5 ppb) |
| 6 | Baker Apartments NY | 34 | 1 of 1 | 0.5 ppb (0.5 ppb) |
| 7 | Stewartsville Stewartsville, MO | 732 | 1 of 2 | 0.36 ppb (0 to 0.71 ppb) |
| 8 | Prairie View Acres Subd Wentzville, MO | 135 | 1 of 2 | 0.3 ppb (0 to 0.59 ppb) |
| 9 | Walraven Subdivision Houston, TX | 25 | 1 of 3 | 0.29 ppb (0 to 0.86 ppb) |
| 10 | City of Nebraska City Nebraska City, NE | 6,591 | 1 of 17 | 0.22 ppb (0 to 3.7 ppb) |
Testing Summary for n-Butylbenzene
| Are tests routinely required for n-Butylbenzene by federal law? | No |
| Water suppliers reporting tests for n-Butylbenzene (2004-2009): | 20,581 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 0.6 per year |
Endocrine disruption
| Type of concern: | Reference: |
| Limited evidence of endocrine disruption | Japanese National Institute of Health Sciences |
Ecotoxicology
| Type of concern: | Reference: |
| Suspected to be an environmental toxin | Environment Canada Domestic Substance List |
Persistence and bioaccumulation
| Type of concern: | Reference: |
| Not suspected to be persistent | Environment Canada Domestic Substance List |
| Not suspected to be bioaccumulative | Environment Canada Domestic Substance List |
Organ system toxicity (non-reproductive)
| Type of concern: | Reference: |
| Classified as not expected to be potentially toxic or harmful | Environment Canada Domestic Substance List |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
| Japanese National Institute of Health Sciences | 1-BUTYLPROPANE | •Endocrine toxicity hazards: suspected |
| Environment Canada Domestic Substance List | BENZENE, BUTYL- | •This chemical was NOT flagged by CEPA for further attention. The chemical was flagged for suspected aquatic toxicity. |
references
| government/industry list/academic study | reference |
| Scorecard.org Toxicity Information | Japanese National Institute of Health Sciences. Lists of Paradigmatic Chemicals. http://www.nihs.go.jp/hse/endocrine-e/paradigm/paradigm.html |
| Environment Canada Domestic Substance List | EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry. |
"RTECS®" is a United States trademark owned and licensed under authority of the U.S. Government, by and through MDL Information Systems, Inc.