When dangerous plumes of white smoke billow down on homes, do they cause lung damage?

What may sound like a minor health issue, but is actually a useful indicator for decision-making of companies about how much outdoor air residents can safely breathe. The risk of developing a debilitating lung disease called acute respiratory distress syndrome (ARDS) increases with higher levels of outdoor atmosphere exposure, according to a study published in the Proceedings of the National Academy of Sciences.

John Brown at the University of Newcastle, and colleagues at Brazil’s National Institute of Health and Medical Research (ISSMedRio) calculated the estimates of the annual number of ARDS cases produced by manufacturers of msm-X-propellant 3.4 million vehicles in various regions of the world for each year of uncertainty from 2002 to 2015.

They compared those numbers with actual air quality data from a region about the same size as Newcastle and operational air quality monitoring information from four manufacturing sites in the following Brazilian states: Bahia, Sao Paulo, Rio Grande and Belgrade.

There were a total of 2,854 reports of ARDS, resulting in a total of 4,861 ARDS diagnoses.

The total annual number of people in the affected families ranged from 1,91 to 127,637.

The mean age of the population in affected families was 35 years, making it a potential predictor for the disease. In the group of ARDS patients who were not exposed to outdoor environment, the mean body surface area was 51.2cm2 (134.0 square metres) at the beginning of the study period. In the public health domain, the mean indoor area was 40.1cm2 (133.4 square metres). Average indoor average indoor air 5m-level (9.4 ft) was significantly associated with ARDS risk, more than three-fold greater than the mean indoor air 6m-level (7.6 ft).

Based on prediction model results, the team calculated a five-point (watts decibels) threshold above which a significant reduction in the outdoor environment emerged. A value of 1.1 W/m2 at the halfway stage was statistically significant as measuring the “CE.”