Today, we review a report that develops a method of assessing exposure to air pollution over several decades, based on the exposure of residents to air pollution from industrial and mobile sources, as deduced from the conventional national air pollution network and from vehicle emissions, updated using space based sensors on the OMI satellite. The approach used will likely be very useful for then assessing the lifetime risk of cancer from accumulated exposure to air pollution.
Key Quotes:
“The spatiotemporal exposure assessment included three steps:
- national spatial surfaces were created from recent satellite-based estimates (for PM2.5 and NO2) and a chemical transport model (for O3)…
- National Air Pollution Surveillance (NAPS) monitoring data were compiled and formatted for the study period, including 120 NO2 stations and 1030 measurement-years…
- spatial pollutant surfaces were calibrated yearly to estimate average annual concentrations between 1975 and 1994”
“only 40% of participants lived at their study entry residence for the entire 20 year exposure period”
“The exposure assessment methods developed here will allow subsequent epidemiological analyses to examine latency periods associated with lung cancer, include both urban and rural populations, and study the contributions of multiple ambient pollutants and local vehicle and industrial emissions to lung cancer risk in Canada”
Related articles
- Harvard Six Cities Study Update on Mortality from Exposure to Fine Particles (pollutionfreecities.blogspot.com)
- Hamilton's Air Pollution Hot Spots (pollutionfreecities.blogspot.com)
- Slight Decreases in Air Quality and Higher Risk of Strokes (pollutionfreecities.blogspot.com)
- The Health Costs of Asthma caused by Traffic-Related Air Pollution (pollutionfreecities.blogspot.com)
- Assessing Air Quality near Major Roads in Ontario, Canada (pollutionfreecities.blogspot.com)
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