Category Archives: Air Pollution

Preoccupation with decarbonization is diverting attention in the wrong direction

PM2.5 not likely associated with premature deaths

James E. Enstrom. Scientific Distortions in Fine Particulate Matter Epidemiology. Journal of American Physicians and Surgeons Volume 23 Number 1 Spring 2018

The theoretical prevention of premature deaths from the inhalation of fine particulate matter is being used by the U.S. Environmental Protection Agency (EPA) to justify the National Ambient Air Quality Standard (NAAQS) and multibillion dollar regulations across the U.S., including the EPA Clean Power Plan and the California Air Resources Board (CARB) Truck and Bus Regulation. The epidemiology is severely flawed. Fine particulates probably make no significant contribution to premature mortality in the U.S. The publication of null findings has been blocked or marginalized and studies claiming excess mortality need to be reassessed. click here

USEPA revises New Source Review (NSR) guidance, simplifies permitting

The Environmental Protection Agency issued a guidance to clear up uncertainties in obtaining air quality permits required to build or modify facilities, like power plants and refineries. click here

Junk Science Supported by New England Journal of Medicine

“This letter is not a letter to the editor, hoping for publication, so that the authors might comment on or criticize some article in the NEJM. We write to complain that there is a continuing scandal of scientific integrity at the NEJM—junk science in air pollution epidemiology is being sponsored by what most would consider the iconic medical journal of America.” click here

Statistics Invalidate Air Pollution Death Claims

“Clearly we don’t know everything about asthma, but there is little evidence to suggest that air pollution from traffic makes much difference.” click here

China Air Pollution Study has Serious Weaknesses; Non-conclusive

Peng Yin, Guojun He, Maoyong Fan, Kowk Yan Chiu, Maorong Fan, Chang Liu, An Xue, Tong Liu, Yuhang Pan, Quan Mu, Maigeng Zhou. Particulate air pollution and mortality in 38 of China’s largest cities: time series analysis. BMJ 2017;356:j667 doi:

The findings of this particular study (click here) and been seriously questioned (click here). If not considered, cigarette smoking is a huge confounding factor in any study involving the respiratory system. Confidence limits on the analysis must be considered when evaluating data.

How do Climate Models Account for Klyuchevskaya Sopka?

An honest question. What about the particulate and gas emissions from volcanoes?

“The volcanic ash cloud has spread over an area of almost 13,500 square feet. It has drifted 124 miles southeast toward the Sea of Okhotsk, in the Pacific Ocean. “click here