Air Quality Management Planning

uMoya-NILU offers services in the development and review of Air Quality Management Plans (AQMPs) for different spatial scales, i.e. provinces, metro, district and local municipalities.

uMoya-NILU has established a sound track record in the field of Air Quality Management Planning, following on from their involvement in the development of South Africa’s National Framework for Air Quality Management. Flagship AQMP projects conducted by uMoya-NILU include, amongst others:
👉 The development of the provincial AQMPs for the Western Cape and the Eastern Cape.
👉 The development of Priority Area AQMPs for the Highveld Priority Area and the Waterberg Bojanala Priority Area.
👉 Developing AQMPs for municipalities, including Ugu, uThungulu and Stellenbosch.
👉 Revising the 2007 AQMP for eThekwini Municipality
👉 The development of AQMPs for the 9 ports ports in South Africa managed by TNPA.


Air Quality Baseline and Impact Assessments

uMoya-NILU provides specialist air quality studies as input to Environmental Impact Assessments, Atmospheric Impact Reports (AIR) and Atmospheric Emission License (AEL) applications. Included are baseline air quality assessments, specialist air quality studies, dispersion modelling, emission inventory compilation and assessment and mitigation planning.

Air quality baseline and impact assessments for industrial development projects and for AQMPs require input in a number of specialised areas. While dispersion modelling is often the primary assessment approach, it is supported by ambient air quality and meteorological monitoring and emission determination.

The range of skills required are resident at uMoya-NILU, providing a single-consultancy specialist team. The team has developed considerable experience through numerous impact assessment projects of different scales for industry and mining throughout southern Africa, including Namibia, Mozambique, Zambia and of course, South Africa.


Ambient air quality monitoring

Ambient air monitoring is the systematic, long-term assessment of pollutant levels by measuring the quantity and types of certain pollutants in the surrounding, outdoor air. Ambient air monitoring is an integral part of an effective air quality management system. Reasons to collect such data include to:
👉 assess the extent of pollution;
👉 provide air pollution data to the general public in a timely manner;
👉 implementation of air quality goals or standards;
👉 evaluate the effectiveness of emissions control strategies;
👉 provide information on air quality trends;
👉 provide data for the evaluation of air quality models; and support research (e.g., long-term studies of the health effects of air pollution).

uMoya-NILU’s service offering in Ambient Monitoring includes the design, optimisation and management of Ambient Air Quality monitoring networks, as well as Data Management and Quality Control / Quality Assurance.

uMoya-NILU offers monitoring services that include real time gas and particulate analysers, dust fall out buckets and passive samplers for campaign or long term monitoring purposes. Sampling can be performed for a range of organic and inorganic pollutants.


Calibration and Analytical Service

Through our partnership with NILU, uMoya-NILU utilises their extensive analytical capabilities which are recognised throughout the EU to offer our clients direct access to a quality assured and quality controlled analytical service.

The analytical capabilities extend to an extensive range of inorganic and organic analytes, low detection levels, coupled with rapid turn around times.

uMoya-NILU has also set up an in-house gravimetric laboratory and a SANAS ISO:17025 accredited calibration laboratory.


Emission inventories, including Greenhouse Gases

An emission inventory is a listing, by source, of the amounts of pollutants actually or potentially discharged. Such an inventory is used to establish and put forth emission standards.

uMoya-NILU led the development of the National Atmospheric Emission Inventory System (NAEIS) for the Department of Environmental Affairs. uMoya-NILU has extensive process engineering experience in the petro-chemical and manufacturing industry and in the establishment of urban-scale emissions inventories.


Leak Detection and Repair (LDAR)

Subcategories 2.4, 2.5 and 3.3, and Category 6 Listed Activities are required to institute leak detection and repair (LDAR) programmes in accordance with USEPA Method 21.

LDAR programmes are intended to identify leaking equipment through the measurement of VOC concentrations and the subsequent repair of the leaks in order to reduce fugitive emissions.

uMoya-NILU has the capability and experience to undertake LDAR programmes. Our methodologies and equipment have been approved by the licensing authorities of various provinces and municipalities.

We use a flame ionization detector (FID) to measure the concentration of VOC species in a gas stream to ppm levels. The output of our programme is a list of leaking equipment such as valves, flanges and pump seals, which we issue to our clients for further repair.


Isokinetic Stack Sampling and emissions testing

A stack test is a procedure for sampling a gas stream from a single sampling location at a facility, unit, or pollution control equipment. It is used to determine a pollutant emission rate, concentration, or parameter while the facility, unit, or pollution control equipment is operating at conditions that result in the measurement of the highest emission or parameter values. Listed activities must comply with emission limits as specified in their Atmospheric Emission Licences.

Listed Activities are also required to measure emissions at least once per year and report these to the NAEIS.

uMoya-NILU offers the service of emission testing to determine compliance with these emission limits, in accordance with the USEPA and ISO methods specified in Listed Activities regulation.

Our emission testing team comprises four technicians with a collective experience of more than 20 years. Our current clients in emission testing include major players in the oil and gas, manufacturing and mining industries.


AEL Applications and NAEIS Reporting

uMoya-NILU’s experience in the regulatory environment, in industrial and chemical engineering, and their understanding of the requirements Atmospheric Emission Licensing and the Section 21 regulation places them in a strong position to assist companies with AEL applications, renewals and variations.

The development and implementation of the South African Emission and Licensing Portal (SAAELIP) has moved the application to an on-line process. uMoya-NILU has developed extensive experience with the requirements of the SAAELIP.

uMoya-NILU led the development of the National Atmospheric Emission Inventory System (NAEIS) for the Department of Environmental Affairs. Listed Activities, mining and controlled emitters are required to report emissions annually to the NAEIS. uMoya-NILU has developed extensive experience with the requirements of NAEIS reporting and assists a number of organisations annually.



uMoya-NILU collaborates with the National Association of Clean Air (NACA) in offering training courses in Air Quality Management as well as the associated specialist disciplines of Ambient Air Quality Monitoring, Emissions Inventories and Dispersion Modelling.