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Research ramps up but PFAS pollution remains tough to tackle; California's idle oil wells present a costly threat to health and climate.

Research ramps up but PFAS pollution remains tough to tackle

As researchers rush to tackle global contamination from a class of toxic chemicals known as PFAS, a new study demonstrates a novel way to detect the substances in wastewater – but also underscores how far scientists are from figuring out how to effectively overcome this worldwide threat to human and environmental health.

The new method makes use of a sensor to identify one type of per- and polyfluoroalkyl substances (PFAS) called perfluorooctanoic acid (PFOA) in heavily contaminated water based on changes in light emissions from metals on the device’s surface, according to a Jan. 16 study in the journal Analytical Chemistry. The researchers plan to develop the early model in to a portable device, according to a press release.

The prototype can so far only measure one PFAS chemical out of thousands. And although the sensor appears to be sensitive enough to illuminate PFAS in industrial wastewater, it may take another decade before the technology can be used for drinking water, which contains much lower levels of the chemicals, said Zoe Pikramenou, a professor at the University of Birmingham in the United Kingdom who is an author of the study.

Many other promising new technologies to detect so-called “forever chemicals”, which do not naturally break down,  remain in the early stages of development. The Biden administration has called on federal agencies to restrict PFAS from entering US water, air, land, and food; set goals for the government to better assess and reduce PFAS exposure; clean up existing pollution; and expand health effects information. (Read the rest of the story.)

Postcard from California: Idle oil wells threaten health, climate and will cost billions to plug

(Opinion columns published in The New Lede represent the views of the individual(s) authoring the columns and not necessarily the perspectives of TNL editors.)

Last June, at commencement ceremonies in the small, heavily Latino town of Arvin, Calif., proud graduates threw their caps in the air. But those gathered at the Arvin High School football field didn’t know there was something else in the air: potentially explosive levels of noxious methane gas leaking from an idle oil well only 400 feet away.

A week before, state inspectors had found that 27 idle wells around Arvin were leaking methane, the main constituent of so-called “natural” gas. More than half – including the well near the football field, which hadn’t produced oil since 1979 – were spewing concentrations of the combustible, colorless, odorless gas. But the community wasn’t told about the leaks until a meeting almost two weeks after graduation.

State regulators’ “woeful lack of enforcement led to the inevitable leaks in our neighborhoods that our communities have warned about for years,” Cesar Aguirre, an organizer with the Central California Environmental Justice Network, said in a press release.  He said officials “callously told residents . . . not to worry, leaving them feeling defenseless and willfully put in harm’s way.”

Arvin is in Kern County, the center of California’s oil industry. But idled and leaking oil and gas wells are a statewide crisis whose scope – and the looming cost of closing them – is mind-boggling. (Read the rest of the opinion column.)