Quantcast
Energy

Cancer-Causing Chemicals Found in Oilfields Supplying Wastewater to Irrigate Food Crops

People in California's Central Valley could be drinking water tainted by cancer-causing chemicals used in oilfields, and current water-testing procedures would not detect these substances, according to a scientific report released Tuesday by researchers at PSE Healthy Energy, Lawrence Berkeley National Laboratory, the University of California and the University of the Pacific.

More than 100 farms in the Central Valley use oil wastewater for irrigation.

The report identified dozens of hazardous chemicals used in oilfields that supply waste fluid used to irrigate food crops and recharge underground water supplies in California. Researchers note that produced fluid from these oilfields is recharging regional aquifers used for agriculture that "can also be used for domestic water supply (including drinking water)."

"Many of the chemicals used on oil fields do not have standard analytical protocols for their detection in water, so current water quality monitoring programs are mainly focused on naturally occurring contaminants," the report noted.

"Given these shocking findings, California regulators should immediately halt the use of oil-waste fluid in any procedure that could contaminate the water we drink or the food we eat," said John Fleming, a staff scientist with the Center for Biological Diversity and member of the Protect California Food coalition and Californians Against Fracking. "It's absolutely unacceptable that people in the Central Valley could be drinking dangerous oil-industry chemicals right now without even knowing it."

Oilfield wastewater has been used to irrigate food crops in the Cawelo Water District since the mid-1990s, the report noted. The practice recently spread to the North Kern Water Storage District, and state officials have said they hope to further expand it. But there has been little evaluation of risks posed by the threat of chemicals in such fluid.

Researchers noted that many chemicals used in these oilfields cannot be evaluated for hazards because oil companies have withheld key information. But more than 40 percent of those substances that can be identified can be classified as potential threats to human health or the environment.

"This report shines an important light on a troubling reality—the state of California is allowing the oil industry to experiment on consumers of our food products and the agricultural workers that grow them," said Madeline Stano, a staff attorney with the Center on Race, Poverty & the Environment. "The report demonstrates that the use of oil wastewater adds serious risks to both consumers and agricultural workers' health and safety. The state should stop this practice immediately."

Ten of the oilfield chemicals evaluated by this research team have been classified by the International Agency for Research on Cancer as either carcinogenic or possibly carcinogenic in humans.

More than 100 farms in the Central Valley use oil wastewater for irrigation. Some of the U.S. most popular brands grow food in the Cawelo and North Kern water districts, including Trinchero Family Estates (makers of Sutter Home wines) and Halos Mandarins (formerly known as Cuties).

Show Comments ()

EcoWatch Daily Newsletter

Sponsored
Insights
Residents stand in a long queue to fill water containers on May 27 in Shimla, India. Deepak Sansta / Hindustan Times / Getty Images

World Peace Requires Access to Safe Water

International Peace Day is Sept. 21. Mekela Panditharatne, attorney with the Natural Resources Defense Council, submitted the following op-ed to EcoWatch in commemoration.

In drought-ravaged East Africa, the cracks in the plains echo the fault lines splitting tribes.

Across the globe, the devastation of deadly brawls is being exacerbated by tensions over access to water. Water crises, often worsened by governance failures, can portend warning signs for instability and conflict. This year, the World Resources Institute cautioned that water stress is growing globally, "with 33 countries projected to face extremely high stress in 2040." The effects of such water stress span the gamut from civil unrest to open warfare.

Keep reading... Show less
Food

How Your Personality Type Could Influence Your Food Choices

By Melissa Kravitz

"You are what you eat" may be one of the oldest sayings ever to be repeated around the dinner table, but can you also eat what you are?

Keep reading... Show less
Climate
A child rides his bicycle in an area affected by the Hurricane Maria passing in Toa Baja, Puerto Rico on Oct. 5, 2017. RICARDO ARDUENGO / AFP / Getty Images

Hurricane Maria's Legacy: One Year Later

As Puerto Rico marked one year since Hurricane Maria made landfall yesterday, the Miami Herald this week ran extensive reports in English and Spanish on the island's continuing recovery.

Keep reading... Show less
Science
A foldable, biodegradable battery based on paper and bacteria. Seokheun Choi / Binghamton University, CC BY-ND

Could Paper Power the Next Generation of Devices?

By Seokheun Choi

It seems like every few months there's a new cellphone, laptop or tablet that is so exciting people line up around the block to get their hands on it. While the perpetual introduction of new, slightly more advanced electronics has made businesses like Apple hugely successful, the short shelf life of these electronics is bad for the environment.

Keep reading... Show less
Sponsored
Business
Blue Point Brewing Company

Long Island Brewer Launches 'Good Reef Ale' to Help Restore New York’s Oyster Reefs

Between the 1600s and the early 20th century, European settlers in New York City ate their way through 220,000 acres of oyster reefs covering 350 square miles, The Washington Post reported.

Keep reading... Show less
Oceans
California restaurants will only be able to serve plastic straws like these upon request. Horia Varlan / CC BY 2.0

California Becomes First State to Regulate Plastic Straws

California became the first state in the U.S. to ban plastic straws in dine-in restaurants Thursday when Governor Jerry Brown signed legislation to that effect, the San Francisco Chronicle reported.

The law, which will enter into force Jan. 1, prohibits restaurants from providing straws unless a customer requests one. It covers only sit-down eateries, not fast food restaurants, delis or coffee shops.

Keep reading... Show less
Sponsored
Animals
Giannis Giannakopoulos / YouTube

'Partying' Spiders Blanket Greek Beach on 1,000-Foot Cobweb

Arachnophobes beware. A shoreline by the Greek town of Aitoliko has been swamped by a mass of mating spiders and 1,000 feet of their cobwebs.

Earlier this week, a local named Giannis Giannakopoulos uploaded a YouTube video and posted several pictures of the spectacle on his Facebook page, showing shrubs, palm fronds and other greenery completely veiled by spider webs.

Keep reading... Show less
Climate
Frank Straub / EyeEm / Getty Images

Greenpeace Report: Europe Has 10 Years Left to Ditch Fossil Fuel Cars

Europe must phase out the sales of new gasoline- and diesel-fueled cars by 2028 if it wants to live up to its Paris climate agreement emissions-reduction pledges, according to new research by Germany's Aerospace Center.

Even conventional hybrid cars, which feature gasoline-powered engines, would have to disappear by the mid-2030s if Europe intends to fulfill its part of the Paris deal to limit global warming to 1.5°C, according to the Greenpeace-commissioned study.

Keep reading... Show less
Sponsored

mail-copy

The best of EcoWatch, right in your inbox. Sign up for our email newsletter!