Exposure to the pesticide chlorpyrifos has been linked to brain damage in infants and children. California banned it earlier this year, and last August a federal court ordered EPA to ban the chemical. EPA announced last week that it would not ban the pesticide, citing insufficient data. <Read more>
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Tag: children’s environmental health
As Laura M. Holson from the New York Times reports, as climate change dialogue is increasing across the country, be it through realistic portrayals or fictionalized Hollywood movies, children are increasingly nervous about the prospect of impending disaster. Children, especially, are feeling the impacts of our overall anxiety about climate change because much of the messaging is directed at them, explaining how our children are the ones that will feel the worst impacts of our warming planet.
As climate change becomes a very real issue weighing on our kids’ minds, here are some ways to explore the topic to help our kids feel as though they have agency over their futures. <Read more>
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Vermont legislators have just passed a bill that will require schools to test water for lead, and that will require the state to pay for it. The bill comes after increased national concern about potential toxins in school water systems: just last year, Vermont tested water in 16 schools, and all were found to have traces of lead in their water. <Read more>
by Summer-Solstice Thomas, CHEJ Science & Technology Intern
In the small town of O’Brien, Texas, residents drank water that violated drinking water quality standards for months before one resident found out and altered his community. Facing financial stress, the city had switched from a treated reservoir to a groundwater source with violatingly high levels of nitrates to provide drinking water for its residents.
Nitrate pollution usually comes from fertilizers, as in agricultural towns like O’Brien, and can cause methemoglobinemia, or “blue baby” disease in infants. Nitrate levels in O’Brien schools were found to be 40% above EPA standards. Upon hearing the news, many residents switched to drinking bottled water or purchased individual water filters, but not all were financially able to.
O’Brien is just one example of residents suffering from public water quality violations, but they are not alone. In fact, millions of Americans consume unsafe public drinking water everyday.
Is US Drinking Water Safe?
According to the Center for Disease Control and Prevention (CDC), the US has “one of the safest public drinking water supplies in the world”. Recent reports, however, have challenged that statement. In March, EPA’s Administrator Andrew Wheeler assured that 92% of public water in the US meets EPA standards.
Given that 90% of Americans, or 300 million people, rely on drinking water from a public source, the 8% that doesn’t currently meet EPA standards indicates that over 26 million Americans consume unsafe water daily. Additionally, while the EPA sets legal limits for over 90 drinking water contaminants, ensuring that these limits are not breached is dependent on proper funding and oversight. Based on the 22% decrease between 2009 and 2014 in funding for public water distribution by state and local governments nationwide, it is possible that more than 8% of the nation’s water is unsafe.
Lead Violations
While the CDC has determined that there is no safe blood level of lead for children, the EPA lead rule determines action must be taken if 10% or more of taps sampled have a lead level of 15 ppb or greater. Recently, this rule has come under scrutiny as many companies find ways around the regulation, by selectively testing certain taps, “pre-flushing” or sampling slowly to reduce samples’ lead concentrations.
Additionally, in 2016, CNN found 5,300 US water systems, serving more than 18 million people, to be in violation of this rule. When the lead rule was first implemented by EPA in 1991, 10 million lead lines served public water nationwide. While this number has decreased to 6.1 million lead lines, there are still 15-22 million Americans served by lead lines, predominantly in the Midwest.
Bacterial Violations
Of the 10,000 public systems violating EPA drinking water standards in 2015, 72% of them were bacteria violations. Bacterial drinking water illness outbreaks have been rising since 2000, with 42 outbreaks between 2013-2014, causing over 1,000 cases of illness. Such violations often occur from contamination of water supplies by animal manure from agricultural operations or sewage, causing 16 million cases of acute gastrointestinal illness annually.
Disparate Impact
Violations of water quality are not experienced equally across the nation, and instead they disparately impact communities of color and low socioeconomic status. Research has determined that the prevalence of nitrates and pesticides in drinking water supplies in the San Joaquin Valley, California’s agricultural powerhouse, is significantly higher in Latinx and low-income communities. After the well-publicized water crisis in Flint, Michigan, children residing in socioeconomically disadvantaged neighborhoods were found to have greater elevation of blood lead levels when compared to their peers.
Exposure to air pollution is linked to a variety of physical health issues, including short-term infections and irritation, and long-term issues like bronchitis and asthma. New research at Columbia University suggests that there may be even more insidious effects of air pollution on unborn children, particularly on their ability to regulate emotions and behavior.
The new study, published in the Journal of Child Psychology and Psychiatry, was the first to look at early-life exposure to PAHs (polycyclic aromatic hydrocarbons) and study its impacts on childhood behavior. PAHs are widespread air pollutants, and are commonly emitted by vehicles, coal plants, industrial manufacturing facilities, and waste incinerators. Due to disparate siting of such facilities in low-income and minority communities, children from these communities are more vulnerable to the impacts of PAHs, which range from cancer to a variety of behavioral issues.
The recent study measured the levels of particular ‘biomarkers’ – compounds that are produced in the body as a result of PAH exposure – in the blood of mothers from New York City. They found that children of mothers with high exposure to PAHs had significantly worse scores on a test that measures behavior and emotional regulation in children. Essentially, PAH exposure may be a predictor of a variety of mental health problems in children and young adults. One study author was quoted in the Columbia Center for Children’s Environmental Health press release:
“This study indicates that prenatal exposure to air pollution…may underlie the development of [fusion_builder_container hundred_percent=”yes” overflow=”visible”][fusion_builder_row][fusion_builder_column type=”1_1″ background_position=”left top” background_color=”” border_size=”” border_color=”” border_style=”solid” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”no” center_content=”no” min_height=”none”][childhood psychiatric problems] such as ADHD, OCD, substance use disorders, and eating disorders.”
The study particularly focused on women from low-income and minority communities, who are at greater risk of exposure to PAHs. Based on the study, increased exposure to PAHs faced by environmental justice communities may leave the next generation susceptible to not only physical health risks, but also behavioral and emotional issues.
To read more about research at the Columbia Center for Children’s Environmental Health, visit their webpage.
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