Traffic emissions maintain upward trend

The air pollution problems caused by continuing growth in road traffic are graphically displayed in the Department of the Environment's latest annual digest of environmental statistics.1 While emissions of the most problematic pollutants from other sectors are generally declining, vehicle emissions are continuing their remorseless upward trend.

This year's digest, which covers the period to 1991, contains more statistical information than ever before. As usual, it provides data on air and water quality, noise, waste and recycling, radioactivity, land use and wildlife. Some new information is provided - an example being air quality data for micropollutants such as dioxins, PAHs and PCBs.

A striking feature of the digest is the extent to which road transport looms large in the air

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