Climate and air quality driven scenarios of

Epub Aug 6. In particular, several studies highlight that higher temperatures enhance rates of peroxyacetylnitrate PAN decomposition [ 323334 ] leading to local NO2 and O3 increases in polluted emission regions. For nine cities in France where the impacts of the heatwave were largestFilleul et al.

how does climate change affect air quality

There is now strengthened evidence for effects of long-term exposure to O3 on respiratory and cardiorespiratory mortality in warm season months [ 1 ], although taken as a whole this evidence is limited at present, as it is primarily derived from studies in North America [ 3 ].

Air-quality-related health impacts from climate change and from adaptation of cooling demand for buildings in the eastern United States: An interdisciplinary modeling study.

Modeling and observational analyses suggest a warming climate degrades air quality increasing surface O 3 and particulate matter in many populated regions, including during pollution episodes.

What are the impacts of climate change

Hence, emissions and climate change are linked in this context of future air quality. Patz et al. We find that by mid-century, climate change alone can increase fine particulate matter PM2. Supplemental Keywords: fellowship, air pollutants, epidemiological endpoint, emissions, climate change, tropospheric ozone, particulate matter, global warming. A detailed description of the influences of meteorological and climate variables in relation to climate change effects on O3 and PM concentrations is given below. A Red blue box outlines depict where changes in a given variable predict an increase decrease in O3 or PM Full size image O3 is strongly correlated with temperature [ 31 ] due to associations of increased temperature with enhanced O3 photochemical reaction rates, as well as with stagnation events discussed below , and with elevated natural emissions from biogenic and wild fire sources. The O3 response is larger for metrics that represent the higher end of the O3 distribution, such as daily maximum O3. Indoor use of air conditioning can be an effective strategy to reduce heat exposure. Climate change can perturb the long-range transport, chemical processing, and local meteorology that influence air pollution. There is considerable literature on the effects of climate change on O3 but fewer studies on the effects of climate change on PM concentrations.

Climate change will also affect climate extreme events such as heatwaves. Whilst evidence has also strengthened for independent impacts of both short-term and long-term exposure to NO2 on mortality, hospital admissions and respiratory symptoms, because of strong correlations between NO2 and other air pollutants it remains difficult to discern a direct effect [ 1 ].

This review examines the current evidence for the effects of climate change on ambient air quality and on the consequent health impacts over Europe. We find that by mid-century, climate change alone can increase fine particulate matter PM2.

what is air pollution
Rated 5/10 based on 62 review
Global air quality and climate.