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Executive Summary

The Public Protection Department of West Berkshire Council commissioned Entec UK to undertake an Updating and Screening Assessment of air quality within their region. The assessment forms part of the statutory duties surrounding Local Air Quality Management (LAQM) and the on-going process of air quality assessment.

Part IV of the Environment Act 1995 requires that Local Authorities

quality within their areas.

This process

of

LAQM

is

an

integral

periodically review air part of delivering the

Government’s Air Quality Objectives.

The Updating and Screening Assessment reviews the pollutants specified under LAQM with regard to guidance issued by Defra in 2003 and the objectives specified in the Air Quality (England) Regulations (2000), the 2002 (amended) objectives and EU Limit Values.

Where the U&SA identifies a potential for the AQOs to be exceeded at locations of relevant public exposure, the LA will be required to undertake a Detailed Assessment.

The Detailed Assessment develops further the information gathered and the conclusions reached from the U&SA and involves the use of more sophisticated modelling and monitoring techniques. The Detailed Assessment will be used to determine whether the likelihood exists for the AQOs to be exceeded and the consequent need to declare or revise an AQMA.

Where it is concluded that a Detailed Assessment is not necessary, a Progress Report is required to be produced on an annual basis.

A summary of the relevant pollutants and requirements for further assessment, as defined from consideration of emission sources in and around West Berkshire, are detailed below.

Pollutant

Potential Emission Sources

Further Assessment Required

Carbon monoxide

None

Progress Report

2004

Benzene

None

Progress Report

2004

1,3-butadiene

None

Progress Report

2004

Lead

None

Progress Report

2004

Nitrogen dioxide

None

Progress Report

2004

Sulphur dioxide

None

Progress Report

2004

Particulate matter

None

Progress Report

2004

h:\projects\em-260\10000 projects\10151 aq w.berks r&a - phase 2\d design\reporting\10151 aq final u&sa.doc 10151-01

May 2003

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