amtest air quality performs comprehensive air pollution testing services, specifically stack testing and source testing to industrial clients, utilizing u.s. epa methodologies. continuous emission monitoring (cem) and isokinetic sampling trains measure pollutants including nox, sox, co, co2, o2, voc, thc, particulates, sulfur dioxide, sulfuric acid mist, total fluoride, dioxins-furans, hydrogen chloride, multi-metals, mercury, beryllium, pm 10, chromium, pohcs, vapor recovery units, nonmethane hydorcarbons, and more.