During construction of a development, there will be emissions of dust and particulate matter to air arising from the on-site activities and emissions of pollutants from the exhaust of plant equipment and road vehicles.
Emissions should be assessed using the latest guidance from the Institute of Air Quality Management (IAQM) Guidance on the assessment of dust from demolition and construction v1.1.  which will determine the risk of impacts from the different aspects of the construction phase with regards to nuisance dust, human health effects due to particulate emissions and effects on ecology.

Mitigation measures should be applied in accordance with the level of risk determined for the site. Appropriate measures are set out within the guidance which should be agreed prior to commencement of works and adhered to during the construction phase.

For sites where a medium or high risk of dust effects have been determined, it may be necessary to undertake monitoring of dust and particulate matter. Further guidance on monitoring is provided in the IAQM guidance – Guidance on Monitoring in the Vicinity of Demolition and Construction Sites.