{"id":1074,"date":"2019-02-12T23:39:50","date_gmt":"2019-02-12T23:39:50","guid":{"rendered":"https:\/\/www.ampac1.com\/blog\/exploratory-assessment-of-risks-from-drinking-and-recreational-water-exposure-to-children-in-the-state-of-new-jersey\/"},"modified":"2026-04-14T02:24:25","modified_gmt":"2026-04-14T02:24:25","slug":"exploratory-assessment-of-risks-from-drinking-and-recreational-water-exposure-to-children-in-the-state-of-new-jersey","status":"publish","type":"post","link":"https:\/\/www.ampac1.com\/blog\/exploratory-assessment-of-risks-from-drinking-and-recreational-water-exposure-to-children-in-the-state-of-new-jersey\/","title":{"rendered":"Exploratory Assessment of Risks from Drinking and Recreational Water Exposure to Children in the State of New Jersey"},"content":{"rendered":"

Summary:<\/strong> Children in New Jersey face disproportionate exposure risks from both drinking water contaminants and recreational water contact, with lead, nitrates, and microbial pathogens presenting the highest documented hazards. This exploratory assessment identifies pathways, sensitive populations, and data gaps that inform risk management priorities.<\/p>\n

Children’s Vulnerability to Water Contaminants in New Jersey<\/h2>\n

Children are not simply small adults when it comes to water exposure risk. Pound-for-pound, children drink two to three times more water relative to body weight than adults, have less mature detoxification pathways, and exhibit higher gastrointestinal absorption rates for contaminants such as lead and arsenic. These physiological differences translate directly into higher effective doses from the same water quality that a regulatory standard calibrated to adult risk may not fully protect.<\/p>\n

Drinking water exposure pathways in New Jersey:<\/strong> New Jersey’s drinking water infrastructure presents several well-documented risk factors for children. Lead service lines\u2014pipes connecting the municipal main to individual homes\u2014were standard before 1986 and remain in service in older urban communities including Newark, Trenton, and Camden. Lead mobilizes from these lines especially when water chemistry or pressure changes occur, and young children absorb up to 50% of ingested lead compared to roughly 10% in adults. No safe blood lead level for children has been established, and cognitive effects are detectable at levels previously considered acceptable.<\/p>\n

Nitrate contamination from agricultural and septic sources affects shallow wells across the state’s farming regions. Infants under six months are particularly vulnerable to methemoglobinemia (“blue baby syndrome”) from nitrate above 10 mg\/L as N. Households on private wells bear sole responsibility for testing and treating their supply, creating inequitable protection relative to regulated municipal customers.<\/p>\n

Recreational water risks:<\/strong> Children swim more frequently and for longer durations than adults and are more likely to ingest water. New Jersey’s coastal beaches, inland lakes, and municipal pools each present distinct microbial and chemical hazard profiles. Harmful algal blooms (HABs) from cyanobacteria produce hepatotoxins and neurotoxins that pose acute risks; children’s lower body weight amplifies effective toxin dose. Post-storm beach closures reflect elevated pathogen loads from combined sewer overflows that disproportionately affect swimming populations in lower-income urban coastal areas.<\/p>\n

A multi-barrier approach combining source protection, point-of-use treatment (especially RO for well users), and informed recreational guidance best protects New Jersey’s pediatric population from water-related health risks.<\/p>\n

Brandon M. Owen\u00a0<\/span>and\u00a0<\/span>Neha Sunger\u00a0*\u00a0<\/span><\/p>\n

*<\/sup>Author to whom correspondence should be addressed.<\/div>\n

Abstract<\/h4>\n

In this study, we conducted a worst-case risk assessment for children\u2019s health from ingestion exposure to water sources in two densely populated counties of the Piedmont province of New Jersey\u2014Hunterdon and Mercer counties. Carcinogenic and non-carcinogenic health risk estimates for 19 contaminants, representing 3 different chemical classes\u2014organic, inorganic and contaminants of emerging concern (CEC), for which environmental monitoring data are available\u2014were generated. The three exposure scenarios examined were: (1) ingestion exposure to untreated groundwater from contaminated private wells; (2) recreational exposure through incidental ingestion of water from the Delaware River; and (3) ingestion exposure through fish consumption sourced from the Delaware River. The total health hazard posed by each contaminant across all the three exposure scenarios was compared to prioritize contaminants based on health risk potential. As a result of this analysis, arsenic and trichloroethylene in private well water were identified as key drivers of health risk and, hence, are proposed as the contaminants of primary concern for the target population. Significantly high total excess cancer risk of 2.13 \u00d7 10\u22123<\/sup>\u00a0from arsenic exposure was estimated, highlighting the need for testing and treating water sources as well as setting a framework for more detailed work in the future.<\/p>\n

https:\/\/www.mdpi.com\/2073-4441\/10\/3\/276<\/p>\n

The post Exploratory Assessment of Risks from Drinking and Recreational Water Exposure to Children in the State of New Jersey appeared first on Facts About Water.<\/p>\n

Source: Water Feed<\/p>\n

<\/p>\n

\n

Frequently Asked Questions<\/h2>\n
\n

Why are children more vulnerable to waterborne contaminants than adults?<\/h3>\n
\n

Children drink more water relative to body weight (2\u20133x adult rates), absorb a higher fraction of ingested contaminants like lead and arsenic through the GI tract, and have immature detoxification organs. Their developing nervous, endocrine, and immune systems are also more susceptible to disruption from low-level chemical exposures that adults can tolerate without measurable effect.<\/p>\n<\/div>\n<\/div>\n

\n

What is the main drinking water risk for children in older New Jersey homes?<\/h3>\n
\n

Lead contamination from lead service lines and lead solder in household plumbing is the primary risk in pre-1986 homes. Newark’s lead crisis (2019\u20132021) demonstrated that tens of thousands of children can be exposed to elevated lead levels before utilities act. Running tap water for 30+ seconds before use reduces lead exposure, but only permanent lead service line replacement eliminates the hazard. Point-of-use RO or certified lead-reducing pitcher filters provide reliable protection while replacement proceeds.<\/p>\n<\/div>\n<\/div>\n

\n

What nitrate level is dangerous for infants?<\/h3>\n
\n

The EPA maximum contaminant level (MCL) for nitrate is 10 mg\/L as nitrogen. Concentrations above this threshold increase the risk of methemoglobinemia in formula-fed infants under six months, a condition in which nitrate-derived nitrite oxidizes hemoglobin, reducing oxygen-carrying capacity. Infants showing bluish discoloration of skin or lips after consuming formula prepared with well water require immediate medical evaluation.<\/p>\n<\/div>\n<\/div>\n

\n

How can New Jersey parents test their tap water for lead and nitrates?<\/h3>\n
\n

New Jersey’s DEP offers a list of certified drinking water testing laboratories. First-draw and flush samples are recommended for lead testing, following EPA protocol for accurate results. Nitrate testing requires a simple wet chemistry analysis costing $15\u201330 per sample. Many county health departments provide free or subsidized testing kits for private well users. Testing is recommended annually for wells and after any changes in water taste, odor, or color.<\/p>\n<\/div>\n<\/div>\n

\n

What point-of-use treatment works best for protecting children from multiple water contaminants?<\/h3>\n
\n

Reverse osmosis systems with NSF\/ANSI 58 certification provide the broadest multi-contaminant protection\u2014simultaneously reducing lead, nitrates, arsenic, chromium-6, PFAS, and microbial contaminants. Certified pitcher filters address lead and some organics but not nitrates. Boiling water does not remove lead, nitrates, or PFAS and actually concentrates them. For comprehensive child protection, a point-of-use RO unit at the kitchen tap is the recommended approach by many pediatric health advocates.<\/p>\n<\/div>\n<\/div>\n

\n

What recreational water hazards are most relevant for NJ children?<\/h3>\n
\n

Harmful algal blooms (HABs) in inland lakes and reservoirs produce cyanotoxins\u2014including microcystin and cylindrospermopsin\u2014that cause liver damage, skin irritation, and neurological effects upon ingestion or skin contact. Microbial contamination from CSO events affects coastal beaches and urban swimming areas. Parents should check NJ DEP beach\/lake advisory postings before swimming and immediately shower children after recreational water contact.<\/p>\n<\/div>\n<\/div>\n

\n

Are private well users in NJ subject to the same water quality regulations as municipal customers?<\/h3>\n
\n

No. Private well users in New Jersey are responsible for testing and treating their own water\u2014state regulations do not mandate routine testing after initial installation in most cases. The NJ Private Well Testing Act requires testing at real estate transactions, but ongoing monitoring is voluntary. This creates a significant protection gap: rural and agricultural areas with the highest nitrate and pesticide risks rely on individual homeowner awareness rather than regulatory oversight.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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