Secondary air pollutants and forests--new perspectives.
Air pollution has been known to affect forests for over a century, and many of the mechanisms of pollutant deposition and effects have been established, at least for forest trees. Changes in air quality as a result of emission controls in Europe and North America, or as a result of rapid industrialisation in southern and eastern Asia, have highlighted new pollution problems. This paper, by reference to recent publications, highlights two areas where more research is required: the interactions of photochemical oxidants with biogenic emissions of volatile organic compounds, and their impact on ecological signalling; and the role of atmospheric particles in changing the leaf surface environments in forests.
Cape
J Neil
JN
Centre for Ecology & Hydrology, Bush Estate, Penicuik, Midlothian, EH26 0QB, UK. jnc@ceh.ac.uk
D000393:Air Pollutants / Q000737:chemistry*; D009589:Nitrogen Oxides / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry; D010083:Oxidants, Photochemical / Q000737:chemistry; D010126:Ozone / Q000737:chemistry; D052638:Particulate Matter; D014197:Trees; D014835:Volatilization
D000393:Air Pollutants; D009589:Nitrogen Oxides; D009930:Organic Chemicals; D010083:Oxidants, Photochemical; D052638:Particulate Matter; D010126:Ozone