![]() ![]() Trump or DeSantis? Neither, say Ukrainian-American voters angry at war stance.įrustrated by following links to articles you can’t continue reading? Learn more, here, here, here, and here. identified serious health risks associated with chemicals proposed for use in oil and gas extraction, and yet allowed those chemicals to be used commercially with very lax regulation,” said Dusty Horwitt, researcher at Physicians for Social Responsibility. Those tests were not mandatory and there is no indication that they were carried out. scientists recommended additional testing. scientists pointed to preliminary evidence that, under some conditions, the chemicals could “degrade in the environment” into substances akin to PFOA, a kind of PFAS chemical, and could “persist in the environment” and “be toxic to people, wild mammals, and birds.” The E.P.A. In a consent order issued for the three chemicals on Oct. The records, obtained under the Freedom of Information Act by a nonprofit group, Physicians for Social Responsibility, are among the first public indications that PFAS, long-lasting compounds also known as “forever chemicals,” may be present in the fluids used during drilling and hydraulic fracturing, or fracking. The E.P.A.’s approval of the three chemicals wasn’t previously publicly known. in 2011 approved the use of these chemicals, used to ease the flow of oil from the ground, despite the agency’s own grave concerns about their toxicity, according to the documents, which were reviewed by The New York Times. tight oil production.For much of the past decade, oil companies engaged in drilling and fracking have been allowed to pump into the ground chemicals that, over time, can break down into toxic substances known as PFAS - a class of long-lasting compounds known to pose a threat to people and wildlife - according to internal documents from the Environmental Protection Agency. March 2020 Supplement: Base production accounts for a material share of total U.S. August 2020 Supplement: Rig counts fall but new-well production per rig rise as new-well production persists. September 2020 Supplement: With low rig counts, the inventory of drilled but uncompleted (DUC) wells provides short-term reserve for completions of new wells. January 2021 Supplement: Base production in North Dakota has fully recovered after a significant reduction. September 2021 Supplement: Gas-to-oil ratios in U.S. The DPR methodology involves applying smoothing techniques to most of the data series because of inherent noise in the data. This effect has been observed during winter weather freeze-offs, extreme flooding events, and the 2020 global oil demand contraction. The DPR metric legacy oil/natural gas production change can become unstable during periods of rapid decreases or increases in the volume of well production curtailments or shut-ins. The metric does not represent new-well oil/natural gas production per newly completed well. The metric uses a fixed ratio of estimated total production from new wells divided by the region's monthly rig count, lagged by two months. The Drilling Productivity Report (DPR) rig productivity metric new-well oil/natural gas production per rig can become unstable during periods of rapid decreases or increases in the number of active rigs and well completions.
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