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Units and Abbreviations

g

Gram

µg

Microgram (10-6 g)

ng

Nanogram (10-9 g)

m

Metre

m3

Cubic metre

Nm3

Normal cubic metre of dry gas at 0°C and 101.3 kPa

ppmv

Parts per million on a volume basis

pg

Picogram (10-12 g)

ACC

Accident Compensation Corporation

BAT

Best available technique

CARB

California Air Resources Board

CCME

Canadian Council of Ministers for the Environment

CO

Carbon monoxide

EAF

Electric arc furnace

EC

European Commission

EPA

Environmental Protection Agency

HAPs

Hazardous air pollutants

HMIP

Her Majesty's Inspectorate of Pollution

HRMS

High-resolution mass spectrometer

IPPC

Integrated Pollution and Prevention Control

I-TEQ

International Toxic Equivalent

LOD

Limit of detection

MACT

Maximum achievable control technology

NESHAP

National Emission Standards for Hazardous Air Pollutants

N-TEQ

Nordic Toxic Equivalent

PCDD

Polychlorinated dibenzo-para-dioxins

PCDF

Polychlorinated dibenzofurans

PG

Process guidance

POPs

Persistent organic pollutants

PPC

Pollution and Prevention Control

PUF

Polyurethane foam

US EPA

United States Environmental Protection Agency

UNEP

United Nations Environment Programme

WHO-TEQ

World Health Organisation Toxic Equivalent