The poor outdoor air quality of Hong Kong and its negative impacts have received significant publicity over the last decade.  As such, the Government has established desired air quality objectives throughout the territory, which it seeks to achieve through the requirements stipulated under the Air Pollution Control Ordinance and the creation of subsidiary legislation.

Air modeling of outdoor air quality is one of the environmental services provided by MCL.  It is a fundamental tool used for analyzing and predicting the impacts a specified process or project may have on the surrounding air quality and sensitive receivers.  MCL is able to provide advice on the latest governmental requirements and make recommendations on how these can best be met.

MCL is experienced in environmental monitoring and management. For specified processes such as concrete batching plants, we can provide a comprehensive package of services to assist our client in obtaining the license promptly, and in a cost-effective manner. Our approach is developed in accordance with the current legislation requirements and is detailed below.

Identification of Emission Points

The identification of emission points is a key factor to accurately estimate the level of pollution.  MCL would conduct walkthrough, desktop study and measurement survey to locate the emission points and determine their emission rates.  This information is then used as input data for air dispersion modeling.

Air Dispersion Modeling

Based on the emission rates, MCL would simulate the dispersion of air pollutants arising from the specified process for different weather conditions and plant orientations.  This is achieved by using a computer model application that has been approved by the Environmental Protection Department. By utilizing such applications the most appropriate plant orientation can be determined.

Preparation of Air Pollution Control Plan

MCL would prepare a tailor-made Air Pollution Control Plan based on the results of air dispersion modeling and the type of production process. It would detail the mitigation measures necessary to ensure compliance with the relevant government requirements. Assistance in applying for a specified process license can also be provided by MCL.

Post-monitoring and Commissioning Audit