F

°F

degrees Fahrenheit

FARs

federally applicable requirements

FAV

final acute value

FBC

fluidized bed combustion

FC

fluorocarbons

FE

fugitive emissions

FEMA

Federal Emergency Management Agency (USA)

FF

fabric filter

FFFSG

fossil-fuel-fired steam generator

FGD

flue-gas desulfurization

FGR

flue gas recirculation

FICs

fluoroiodocarbons (iodine based CFC alternative)

FID

flame ionization detector

flash p

flash point

FLP

flash point

fp

freezing point

FP

fine particulate

fps

feet per second

FR

Federal Register

FR

flammable range

FRM

federal reference methods

FS

feasibility study

FSR

full scale range

FTIR

Fourier transform infrared monitors

FVMP

Federal Visibility Monitoring Program (USA)

FW

formula weight

FWA

flow weighted average

G

GAAP

generally accepted accounting principles

GAC

granular activated carbon

GACT

generally available control technology (air)

GC

gas chromatograph(y)

g/dscm

grams per dry standard cubic meter

GLAD

Great Lakes air deposition

GLC

ground level concentration

GLCmax

maximum ground level concentration

GLS

ground level sampling

gm

gram

GMCC

global monitoring for climatic change

GOES

geostationary operational environmental satellite

GPT

gas phase titration

gr/dscf

grains per dry standard cubic foot

gts

gram of total solid

GWP

global warming potential

H

H2O

water

H2S

hydrogen sulfide

H2SO4

sulfuric acid

HAP

hazardous air pollutant

HC

hydrocarbons

HCHO

formaldehyde

HCl

hydrochloric acid

HCP

hypothermal coal process

HEPA

high efficiency particulate air (filter)

HF

hydrogen fluoride

HHV

higher heating value

HIWAY

a line source model for gaseous pollutants

HNO3

nitric acid

HWC

hazardous waste combuster

HWI

hazardous waste incinerator

I

IAQ

indoor air quality

IDL

instrument detection limit

IFPP

industrial fugitive process particulate

IGCC

integrated gasification combined cycle

ihl

inhalation

IMPACT

integrated model of plumes and atmosphere in complex terrain

INPUFF

Gaussian puff dispersion model

insol

insoluble

INT

intermittent

IOC

inorganic chemicals

IP

inhalable particles

IPM

inhalable particulate matter

IR

infrared

ISC

EPA industrial source complex model

ISCLT

industrial source complex long term model

ISCST

industrial source complex short term model

ISMAP

indirect source model for air pollution

ISO

International Standards Organization

iu

international units

IUPAC

International Union of Pure and Applied Chemistry

IWS

ionizing wet scrubber

J

JAPCA

Journal of Air Pollution Control Association

K

kg

kilogram

kN

kilonewton

L

LAER

lowest achievable emission rate (air)

LCL

lower control limit

LEA

low excess air

LEL

lower explosive limit

LFL

lower flammability limit

LHV

low heating value

LIDAR

light detection and ranging

LIMB

limestone-injection multi-stage burner

LNB

low nitrogen oxides burner

LOV

letter of violation

LPG

liquefied petroleum gas

LPIG

low pressure inert gas

LQG

large quantity generator

LTPD

long tons per day

LWAK

lightweight aggregate kiln

LWL

lower warning limit