EC rules on ozone monitoring, health warnings

The official text of a new EC Directive on air pollution by ozone was published in October.1 In the UK, the legislation will require ozone pollution warnings to be given at lower ozone concentrations than at present, as well as an extension of the official ozone monitoring network.

The Directive was proposed by the European Commission in mid-1991 (ENDS Report 198, pp 42-43). Unlike three earlier Directives on smoke, sulphur dioxide, lead and nitrogen dioxide, it does not set binding air quality standards. Instead, Member States will have to establish ozone monitoring networks and ensure that the public are informed when two out of four ozone threshold concentrations are exceeded.

The reasons why no air quality stand

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