Comments for Health and Medical Organizations: Opposing EPA's Censoring Science Proposal | American Lung Association

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The Honorable Andrew Wheeler, Acting Administrator
U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, NW
Washington, DC  20460

Submitted via

RE: Comments on Proposed Rule "Strengthening Transparency in Regulatory Science" Docket No. EPA-HQ-2018-0259

Dear Acting Administrator Wheeler:

We public health and medical organizations provide comments below on the proposed rule titled "Strengthening Transparency in Regulatory Science." As written, the proposal would allow the Administrator to limit and restrict the scientific research that the U.S. Environmental Protection Agency uses as the basis for public health and environmental protection regulations. On behalf of the health of our patients and the public, we strongly oppose this proposed rule.

EPA Already Uses Transparent, Peer-Reviewed Science

EPA states in the proposal that "the best available science must serve as the foundation of EPA's regulatory actions." We agree wholeheartedly with that sentence. Congress intentionally embedded peer-reviewed research in the foundation of the Clean Air Act, including requiring regular reviews of the science, explicitly recognizing that EPA needs the most current, peer-reviewed data to protect public health. These expectations also are reflected in other public health laws, including the Toxic Substances Control Act.

Unfortunately, the proposal enables unnecessary restrictions on the use of such science.  The title paints the effort as "strengthening transparency," but the result would be just the opposite: the EPA administrator could obscure major, well-vetted research that has found evidence of a wide range of health risks of pollutants, including risks of premature death. If adopted, this change would make it impossible for EPA to arrive at sound judgements about the real-world impacts of air pollution and the benefits of cleaner air, resulting in air pollution standards that do not adequately protect health. The sole beneficiaries would be the industries and polluters that would continue to be able to spew their toxic emissions into the air our patients and our communities breathe.

EPA provides no clear rationale for the sweeping changes outlined in this proposed rule, nor have our organizations identified any need for such action. EPA's existing approach toward science, with its detailed review and deliberation of the research, is already transparent and has worked well for decades. Under the existing system, these studies are well-vetted: first, in their peer review and publication by recognized journals; and second, in the review by independent and staff scientists who ask tough questions about the scope, methodology, data sources, and findings during EPA reviews of proposed standards, policies and regulations. The findings are compared with other studies to examine similarities and differences as the scientists resolve the issues in question. Inconsistencies and replicability are explored in depth to understand what can and cannot be concluded from the findings. Simply put, EPA's proposed rule seeks to solve a problem that does not exist.

In the proposal, EPA references other scientific publications in its attempt to defend the rationale for these changes, citing "related policies by some major scientific journals" including Science and the Proceedings of the National Academy of Sciences. However, the editors in chief of those publications and others refuted that argument in a letter published in April in the journal Science, stating:

"It does not strengthen policies based on scientific evidence to limit the scientific evidence that can inform them; rather, it is paramount that the full suite of relevant science vetted through peer review, which includes ever more rigorous features, inform the landscape of decision making. Excluding relevant studies simply because they do not meet rigorous transparency standards will adversely affect decision-making processes."1

The Proposal Would Block the Use of Seminal Health Studies

Far from making science more transparent, EPA’s proposal would allow the blocking of studies that rely on confidential patient information from being used in policymaking. Many studies, including older studies, depend on or have historically used such data that legally cannot be made public. Indeed, patient information is understandably critical to many studies showing health impacts of pollutants. The fact that this information must be kept confidential to protect patients does not make the data any less valid.

Nor can researchers effectively redact identifying data in a way that will protect confidentiality for many of these studies. The risks to privacy from availability of patient data are recognized in the research and medical profession. For example, Princeton University warns researchers about the importance of data privacy and security, noting that even stripping out personal identifiers does not solve the problem as “the identity of individuals can be inferred by using data sets from multiple sources.”2

Industries and their allies have been pushing to exclude studies for decades, using the same arguments found in EPA’s proposal, targeting research that shows harm to public health from their products or their emissions. In 1996, attorneys working for tobacco industry giant R.J. Reynolds recommended a similar approach requiring review of documents “because, at some point in the future, EPA will most likely be ordered to re-examine ETS [Environmental Tobacco Smoke].”3 EPA had issued its first report on ETS in 1992, concluding that secondhand smoke was responsible for approximately 3,000 deaths from lung cancer annually in nonsmoking adults.4 To prepare for the anticipated next report’s likely conclusion of even greater harm from the products, the R.J. Reynolds attorneys developed a strategy to cast doubt on the studies while obscuring the company’s real purpose. As they explained in the memo:

“Because there is virtually no chance of affecting change on this issue if the focus is ETS, our approach is one of addressing process as opposed to scientific substance, and global applicability to industry rather than focusing on any single industrial sector. Thus the examples of questionable science, to justify these standards. Congress must require those examples serve as the test cases.”5

The tobacco attorneys recommended expanding this approach to other industries,6 which quickly happened. Two of the early industry targets were landmark air pollution studies completed in the 1990s that found solid evidence that particulate matter air pollution could cause premature death. The two long-term studies—the 1993 Harvard Six Cities Study7 and the 1995 American Cancer Society (ACS) Study8 --looked at large populations in multiple locations. The Six Cities study began tracking the health of 8,111 adults in six small cities in the United States in the 1970s. The much larger ACS study began with data from 552,138 people in 151 cities collected as part of the American Cancer Society’s Cancer Prevention Study II in 1982. Both studies controlled for smoking, education and other factors that could cause differences in outcomes. Both studies found the particulate matter in the air was linked to increased risk of premature death.

Their size and careful controls on other known risks gave these research findings substantial weight in EPA’s review of the particulate matter national ambient air quality standard. EPA incorporated these studies into their review of the research, leading to the first national standard for fine particulate matter (PM2.5) in 1997.  These studies were challenged in the 1990s by members of Congress and their industry supporters seeking access to the confidential patient information, arguing that the raw patient data should be public since the research was federally funded.9   Other scientists argued for more investigation of whether confounding factors, insufficient years of data collection or other limitations might mean that the findings were not as powerful as they appeared to be. 10

Instead of blocking the studies, as this proposal would do, EPA took a logical step and referred both studies to an independent third party, the Health Effects Institute, for a deep-dive review.

There, autonomous reviewers examined the data and developed a report on the two studies that confirmed their original findings.11 Since these studies, other research has confirmed their findings as well, including some studies that used publicly available datasets.12 Similar third-party reviews could readily address concerns about existing or future studies as needed.

Researchers are currently incorporating more openness in data sharing where appropriate in their investigations. However, as recent public discussions over data collected online demonstrate, the public remains understandably concerned about the use of individuals' private information.

EPA’s Process for this Proposal Is Not Transparent

EPA’s pledge of transparency falls flat even in the writing of this proposed rule. EPA failed to alert the Agency’s own Scientific Advisory Board to the possibility of this change, as the SAB Work Group noted in a memo to their fellow members, despite its semi-annual schedule for review of scientific and technological questions in upcoming regulations.13

The proposal also lacks critical information about what it would cover and how it would be implemented. It argues that the research must be “replicable” without defining what that means. Many studies cannot be specifically repeated, especially those that examine the impacts of historic events, such as the exposure of a half-million Americans to no-longer-existing levels of air pollution, or the health effects stemming from a massive oil spill. However, subsequent, similar studies from around the world have echoed their findings on health impacts. Which concept would EPA consider as replication?

This proposal also fails to discuss how EPA would implement this approach. The proposal offers no process for public hearing or even consultation with the SAB over implementation.14   As written, the proposal would require review and assessment of volumes of existing research and revisions to internal processes yet to be determined. It also seems to give arbitrary decision-making authority to the Administrator to determine the fate of such research. Implementing this proposal would also require staff time and resources that would need to be included in budget proposals; such a massive additional workload cannot be absorbed by EPA’s existing budget without sacrificing other important Agency responsibilities, given the continued budget cuts proposed by the Administration.

Given the lack of any substantiated need for this change, the history of similar efforts led by polluting industries, the seminal health studies that stand to be excluded, the absence of scientific review or support, and the dearth of information on the implementation of this proposed rule, this is an untenable proposal. Our organizations urge EPA to withdraw this proposal and follow the current, effective measures in place to ensure the use of robust, uncensored scientific research to protect the health of our patients and our communities.


  • Sources
    1. Berg J, Campbell P, Kiermer V, Raikhel N and Sweet D. 2018. Joint Statement on EPA Proposed rule and public availability of data. Science. 10:1126/science.aau0116.
    2. Princeton University. Research Integrity and Assurance: Research Data Security. 2018. Accessed at
    3. Memo from Christopher C. Horner, Bracewell & Patterson, L.L.P. to Tim Hyde and Randy Johnson, R.J. Reynolds Tobacco Company. December 23, 1996. UCSF Library and Center for Knowledge Management. Truth Tobacco Industry Documents. Accessed at
    4. U.S. Environmental Protection Agency. 1992. Respiratory Health Effects of Passive Smoking: Lung Cancer and Other Disorders. EPA Document Number 600/6-90/006F. (600690006F)
    5. Memo from Horner, December 23, 1996. p. 2.
    6. Memo from Horner, December 23, 1996. p. 5.
    7. Dockery DW, Pope III CA, Xu X, Spengler JD, et al. 1993. An Association between Air Pollution and Mortality in Six U.S. Cities. N Engl J Med. 329:1753-1759.
    8. Pope III CA, Thun MJ, Namboodiri MM, Dockery DW et al. 1995. Particulate Air Pollution as a Predictor of Mortality in a Prospective Study of U.S. Adults. Am J Respir Crit Care Med. 151: 669-674.
    9. Couzin J. “Making science an open book” U.S. News & World Report, March 29, 1999.
    10. Health Effects Institute. 2000. Reanalysis of the Harvard Six Cities Study and the American Cancer Society Study of Particulate Air Pollution and Mortality: A Special Report of the Institute’s Particle Epidemiology Reanalysis Project. Health Effects Institute, Cambridge MA. P. 1.
    11. Health Effects Institute. 2000. Summary of Parts I and II.
    12. Eftim SE, Samet JM, James H, Modermott A, Dominici F. 2008. Fine Particulate Matter and mortality: a Comparison of the Six Cities and American Cancer Society Cohorts with a Medicare cohort. Epidemiology. 19(2): 209-216; Zeger S, Dominici F, McDermott A, Samet J. 2008. Mortality in the Medicare population and chronic exposure to fine particulate air pollution in urban centers (2000-2005). Environ Health Perspect, 116: 1614-1619.
    13. Memo from Cullen A, Chair, SAB Work Group on EPA Planned Actions for SAB Consideration of the Underlying Science to Members of the Chartered SAB and SAB Liaisons. May 12, 2018. Accessed at$File/WkGrp_memo_2080-AA14_final_05132018.pdf
    14. Memo from Cullen, May 12, 2018.

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    Page Last Updated: August 3, 2018

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