In addition to the USA and detailed assessment, we are also required to produce a progress report in years when the USA is not undertaken. The detailed assessment uses monitoring and/or modelling data to provide an accurate assessment of whether the objective (pollutant) in question will be exceeded. Where the USA indicates that any of these objectives will be exceeded then we are required to produce a second report called the detailed assessment. This involves an examination of traffic volumes, new sources of pollution and monitoring data and compare these to national objectives for specific pollutants. The Review and Assessment Process requires us to produce every three years, an updating and screening assessment (USA). ![]() Where this assessment indicates that an air quality objective is unlikely to met in any part of its district the local authority must declare an air quality management area (AQMA) and prepare an Action Plan and further assessment of the level of exceedance and indicate how the objective is to be met. This provides the statutory basis for the system of LAQM and include the following pollutants: fine particulates (PM10 and PM2.5), oxides of nitrogen, ozone, sulphur dioxide, polycyclic aromatic hydrocarbons, benzene, one - two butadiene, carbon monoxide, lead and ammonia. In Northern Ireland the air quality objectives contained in the strategy are incorporated into the Air Quality Regulations (Northern Ireland) 2003. The aim of the review is to make sure that the national air quality objectives will be achieved throughout the UK by the relevant deadlines. This involves measuring air pollution and trying to predict how it will change in the next few years. The Environment (Northern Ireland) Order 2002 introduced a statutory obligation on councils to carry out a review and assessment of their local air quality known as local air quality management (LAQM).
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