Air Matrix / Light Gas Analytes & Methods Currently Available from MAI

Analyte

Method

Media (ST= Sorbent Tube)

Light Gases

 

 

Atmospheric (O2, N2, CO2, CO ± Ar)

ASTM D 1946-90 / EPA 3C by GC-PDD / TCD

Summa, Tedlar, gas cylinder, water

Hydrocarbons (methane, ethane, ethane, acetylene, others)

ASTM D 1946-90 / EPA 3C / RSK 175 by GC-FID

Summa, Tedlar, gas cylinder, water

Inert (He, Ne, Ar, Kr, Xe)

ASTM D 1946-90 / EPA 3C by GC-PDD / TCD

Summa, Tedlar, gas cylinder, water may be possible

H2

ASTM D 1946-90 / EPA 3C by GC-PDD / TCD

Summa, Tedlar, gas cylinder, water may be possible

Volatile Organics

 

 

VOCs ± TPH(g)

EPA TO-14, TO-15, TO-17, 8260

Summa, Tedlar, gas cylinder, ST

TPH(g)

EPA TO-3, TO-17, 8015m by GC-FID

Summa, Tedlar, gas cylinder, ST

TPH(g) Fractionated

MA DEP APH

Summa, Tedlar

Geosmin & MIB

EPA 8270m

Water, summa

Other Organics

 

 

Acetic acid

NIOSH 1603m

Impinger

Alcohols

NIOSH 1400 / 2000m by HPLC-FLD

ST, Tedlar

Aldehydes & Ketones

ASTM D 5197-03 by HPLC-UV

ST, Summa (analyte subset)

Ethylene Glycol

NIOSH 5523m

ST ± Impinger

OC & ON Herbicides

NIOSH 5602 by GC-ECD

ST

OP Pesticides

NIOSH 5600 by GC_NPD

ST

PCBs

NIOSH 5503 by GC-ECD

ST

Phenols

NIOSH 2546 by GC-MS SIM

ST

PNAs

TO-17, NIOSH 5506 by HPLC-UV-FLD

ST

TPH(d / mo)

TO-17, NIOSH 1550 by GC-FID

ST

Metals / Inorganics

 

 

Hexachrome, in particulates

NIOSH 7605 by IC-Colorimetry

Filter

Mercury, vapor

NIOSH 6009 by CVAA or CVAF

ST

Metals, in particulates

NIOSH 7303 by ICP-MS

Filter

Organic Lead (TML & TEL), vapor

NIOSH 2534m by GC-ECD

ST

Particulates, Respirable

NIOSH 0600

Cyclone + Filter

Particulates, Total

NIOSH 0500

Filter

ZnSO4, aerosol

NIOSH 7030m

Impinger

Note that particulate & vapor can usually be collected simultaneously with a particulate filter & ST in series

 

Glossary of Terms

 

Concentrations: may be given in ppm = ppmv; mg/m3; mppcf = millions of particles per cubic foot of air as determined from counting an impinger sample; fibers / cm3.

 

PEL, Permissable Exposure Limit: OSHA (Occupational Health & Safety Administration). Pre-1989 PELs are enforced by OSHA due to a court ruling that overturned stricter 1989 PELs. The 1989 PELs have some regulatory effect for compounds that did not have PELs prior to 1989.

 

REL, Recommended Exposure Limit: NIOSH ( National Institute for Occupational Safety & Health)

 

TWA, Time Weighted Average: NIOSH REL designed to be applied in workplace settings for up to 10 hour days (OSHA 8 hour days) during a 40 hour work week

 

STEL,:Short Term Exposure Limit: “ST” precedes numerical value. 15 minute TWA that  should not be exceeded at any time during a workday. Numerical value is always higher than REL or PEL.

 

C REL, Ceiling REL: “C” precedes numerical value. Should not be exceeded at any time. 15 minute TWA is used if instantaneous measurement is not possible. Numerical value is always higher than REL or PEL. Maximum  values are specified exceptions to ceiling values. Maximum values are greater than ceiling values, & short duration exceptions to ceiling values are allowed up to the maximum value. For example, Ceiling value not to exceed “a 5 minute maximum peak value in any 2 hours during an 8 hour day.”

 

(skin): printed after numerical limit;  indicates skin absorption is a potential intrusive pathway

 

(total): printed after numerical limit;  the numerical REL or PEL is for Total Particulate

 

(resp): printed after numerical limit;  the numerical REL or PEL applies to the ‘Respirable Fraction’ of the airborne particulate

 

carcinogen: printed before or after numerical limit. Indicates that compound is a known or suspected carcinogen.

 

ACGIH: American Conference of Governmental Industrial Hygienists