The best of EcoWatch, right in your inbox. Sign up for our email newsletter!
Disbanded Air Pollution Panel Finds EPA Standards Don’t Protect Public Health
By Gretchen Goldman
The Independent Particulate Matter Review Panel has released their consensus recommendations to the EPA administrator on the National Ambient Air Quality Standards for Particulate Matter. The group of 20 independent experts, that were disbanded by Administrator Wheeler last October and reconvened last week, hosted by the Union of Concerned Scientists, has now made clear that the current particulate pollution standards don't protect public health and welfare.
The Clean Air Scientific Advisory Committee (CASAC) — the remaining seven-person committee that is providing science advice to the EPA on the particulate matter standards — meets this week to discuss their recommendations on whether the current standards are adequate. The letter from the Independent Panel will be the elephant in the room.
The Elephant in the CASAC Meeting
CASAC has already acknowledged that they don't have the expertise to conduct the review but you know who does? The Independent Panel. The Panel has more than double the experts of CASAC, and importantly, it has multiple experts in each of the necessary scientific disciplines critical to ensure a comprehensive, robust review of the science supporting the standards.
As a result, we should watch whether or not CASAC aligns with the panel in their recommendations on the standards. If CASAC doesn't decide this week to make a similar recommendation as the Independent Panel, they'll have to explain why they disagreed with a larger, more experienced, and more diverse set of experts on the topic. In any event, the administrator will have access to both CASAC and the Independent Panel's recommendations when he ultimately makes the decision of where to set particulate pollution standards. The panel's recommendations should hold the administrator's feet to the fire.
The Fine Particulate Matter Standards Don’t Protect Public Health
The standards of greatest interest are the primary PM2.5 standards. These are the standards for particulate matter less than 2.5 micrometers (fine particulate matter) that are designed to protect public health. The panel supported the preliminary conclusions of a Draft EPA Policy Assessment that the current standards aren't requisite to protect public health.
The letter cited new and consistent epidemiological findings, supported by human and animal studies and other studies with natural experiments, as providing "clear and compelling scientific evidence" for tighter standards. Since the last particulate matter review, several new large-scale epidemiological studies provide powerful evidence that particulate matter is causing adverse health outcomes (such as early death, heart attacks, and respiratory stress) at locations and during time periods with concentrations at or below the level of the current standards.
They write, "New and compelling evidence that health effects are occurring in areas that already meet or are well below the current standards." Notably, this evidence cuts across different locations with different study populations, different study designs, and different statistical approaches.
Given the weight of the evidence from new studies across scientific disciplines and consistent with the decision-making process that EPA and its science advisers have used for many years, the panel recommends a particulate matter standard between 8 µg/m3 and 10 µg/m3 for the annual PM2.5 standard (compared to the current standard of 12 µg/m3) and between 25 µg/m3 and 30 µg/m3 for the 24-hour standard (compared to the current standard of 35 µg/m3) to protect public health. These ranges are tighter than those recommended in EPA's Draft Policy Assessment.
Keeping the Current Fine Particulate Matter Standards Ignores the Science
The Independent Panel rejected a potential argument for maintaining the current primary PM2.5 standards. The Draft Policy Assessment offered up an alternative rationale that might be used if the agency were to reject the draft assessment's recommendation to strengthen the standards and maintain the current standards. This alternative rationale explains that such a move would require the administrator to be arbitrarily selective in choosing which new studies to accept and which to toss and to disregard new epidemiologic evidence showing effects at lower levels.
The panel roundly rejected this justification, noting that, "Arguments offered in the draft Policy Assessment for retaining the current standards are not scientifically justified and are specious." This is important because if the administrator fails to strengthen the standards, he'll have to explain (both in court and in the court of public opinion) why he feels such a decision is science-based, as required under the Clean Air Act. And one proposed argument he could use has just been debunked by this expert Panel.
Otherwise, the EPA’s Draft Policy Assessment Is Scientifically Sound
While the Independent Panel critiqued some details of the EPA's Draft Policy Assessment, the panel agreed that the draft science and policy assessments were cohesive and robust and the panel commended the "good faith effort" involved in the policy assessment. Specifically, the panel affirmed the use of EPA's causality framework used in the Integrated Science Assessment they reviewed last year and the Policy Assessment's new use of a hybrid modeling technique that allows for better assessment of risk from particulate matter exposure across the country especially in rural areas.
This diverges from what the seven-member CASAC has said and done around the EPA's assessment of the science and policy. In December, they concluded that the agency's draft science assessment was not a scientific document (it is) and CASAC Chair Dr. Tony Cox has been critical of the agency's causality framework that has been developed with dozens of experts over more than a decade. This view is not shared by the scientific community, and now, not shared by the Independent Panel either.
Other Particulate Pollution Standards Also May Need Revamping
The Independent Panel decided other particulate standards were also inadequate. On PM10, particulate matter less than 10 micrometers, the panel recommended revising this standard downward given that the PM2.5 component would also be tightened and noted several research and monitoring areas that need further work. On the secondary standards, i.e. the standards designed to protect welfare effects, such as visibility, the panel concluded that the standards should be tightened in order to be more protective.
The Panel Condemns the EPA’s Broken Process
The Independent Panel's deliberations, demands for further research, and unanswered questions highlight how broken the EPA process is. In a normal review cycle, the panel would have had the opportunity to talk with agency scientists directly. The EPA staff would then have considered their comments and revised the Integrated Science Assessment in response to the committee and panel's suggestions. But because the administrator disbanded the panel and abbreviated the process, there was no opportunity for such dialogue and refinement of the agency's science assessment before policy decisions were discussed. But alas, the panel had to make do with what was available to them and CASAC does too.
Fortunately for CASAC, an Independent Panel has already done their job, and they are free (and encouraged) to run with it, especially given the long list of ways that EPA Administrator Wheeler has damaged the ambient air pollution review process.
Listen and watch this week as CASAC discusses the same questions that the Independent Panel did last week. If CASAC comes to different conclusions than the larger, more experienced, and more diverse Independent Panel, we should ask why.
You can raise these questions yourself and demand that the administrator follow the panel's recommendations, by providing written or oral public comments at a future CASAC meeting and commenting on the docket for the particulate matter rule-making. I'll be providing public comments this afternoon urging CASAC to follow the advice of the Independent Panel and commenting on the EPA's problematic process and drawing attention to that elephant in the room.
Gretchen Goldman is the research director at the Center for Science and Democracy.
Reposted with permission from our media associate Union of Concerned Scientists.
- Air Pollution Linked to 30,000 U.S. Deaths in One Year - EcoWatch ›
- EPA Cuts Science Panel That Reviewed Deadly Air Pollutants ... ›
- These Scientists Were Disbanded by the EPA — They Plan to Meet ... ›
EcoWatch Daily Newsletter
By George Citroner
The Office of Disease Prevention and Health Promotion and the World Health Organization currently recommend either 150 minutes of moderate intensity exercise (walking, gardening, doing household chores) or 75 minutes of vigorous aerobic exercise (running, cycling, swimming) every week.
But there's little research looking at the benefits, if any, of exercising less than the 75 minute minimum.
It seems the reality of the climate crisis is too much for the Federal Reserve to ignore anymore.
For 21 years, Doug Distaso served his country in the United States Air Force.
He commanded joint aviation, maintenance, and support personnel globally and served as a primary legislative affairs lead for two U.S. Special Operations Command leaders.
But after an Air Force plane accident left him with a traumatic brain injury, post-traumatic stress disorder (PTSD), and chronic pain, Distaso was placed on more than a dozen prescription medications by doctors at the U.S. Department of Veterans Affairs (VA).
By Bailey Hopp
If you had to choose a diamond for your engagement ring from below or above the ground, which would you pick … and why would you pick it? This is the main question consumers are facing when picking out their diamond engagement ring today. With a dramatic increase in demand for conflict-free lab-grown diamonds, the diamond industry is shifting right before our eyes.
The scourge of plastic waste that washes up on once-pristine beaches and finds its way into the middle of the ocean often starts on land, is dumped in rivers and canals, and gets carried out to sea. At the current rate, marine plastic is predicted to outweigh all the fish in the seas by 2050, according to Silicon Canals.
By Julia Conley
Joined by Rep. Alexandria Ocasio-Cortez Friday night, Sen. Bernie Sanders held the largest rally of any 2020 Democratic presidential candidate to date in Iowa, drawing more than 2,400 people to Iowa Western Community College in Council Bluffs.