oa Clean Air Journal = Tydskrif vir Skoon Lug - Quality Assurance of Continuous Emission Monitoring Systems : a practitioner's guide/technical report

Volume 25, Issue 2
  • ISSN : 1017-1703



In 2004, the National Environmental Management Act (NEMA) and regulations were promulgated and by 2010 were gazetted into law for the first time in South Africa. Under the NEMA, the Air Quality Act 39 of 2004 (AQA) was promulgated and included priority pollutants identified by the Department of Environmental Affairs (DEA) as having or may have a significant detrimental effect on the environment, including health, social conditions, economic conditions, ecological conditions or cultural heritage. In this context continuous emission monitoring of emissions to air is a requirement under many of the operators as Air Emission Licenses (AEL) issued under section 21 of AQA. The quality of data obtained from continuous emission monitors is ensured by the inclusion of the BS EN14181:2004 (revised standard updated to current BS EN14181:2014) European standard which has been adopted into the South African legislation for this purpose. With this in mind the purpose of this technical paper is to provide an overview of the current status of automated measuring systems (AMS)/continuous emission monitors (CEMs) currently in use by industry to monitor emissions in South Africa, in terms of compliance with relevant emission limit values (ELVs) and the current challenges faced with ensuring the quality and reliability of the data obtained.

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