NEMS received endorsement for the Company's particulate monitoring protocol by the Source Testing Association in January 1998. The monitoring team includes Level 1 & 2 MCERTS certified personnel, together with technical endorsements: TE1 - particulate monitoring by isokinetic techniques; TE3 - for gases/vapours by manual techniques; and TE4 - gases/vapours by instrumental techniques

• ISO 10780 Duct velocity and volume flowrate
• BS EN 13284 Particulates from 0-20mg/m³ (manual method)
• BS ISO 9096 Particulates from 20-1000mg/m³ (manual method)
• BS EN 12619 Organic compounds at low concentrations (instrumental method)
• BS EN 13526 Organic compounds at high concentrations (instrumental method)
• BS EN 13649 Specific organic compounds (manual method)
• ISO 10849 Oxides of Nitrogen (instrumental method)
• ISO 12039 CO, CO₂ & O₂ (instumental method)
• BS EN 1911 Hydrogen chloride (manual method)
• BS EN 14385 Metals (manual method)

Examples of operations and processes for which NEMS has undertaken source emission monitoring, under both local authority and Environment Agency authorisations, include:

aluminium melting and ancillary processes animal carcass incineration animal feed compounding bitumen and tar processes carbonisation clinical waste incineration coating of metal and plastic copper and copper alloy processes electrical and rotary furnaces

ferrous and non-ferrous metal foundry processes gas turbines hot blast cupolas manufacture of clay and refractory goods metal spraying roadstone coating wood coating wood combustion processes

NEMS is able to complement the monitoring of source emissions with computer modelling of the dispersion of pollutants to assess the effects of emissions on the surrounding environment.