Photoionization Detectors (PIDs) are the easiest and most efficient way to detect VOC levels. Although not as selective without the use of a gas chromatography column, a stand alone PID provides real time measurement of total volatile organic compounds in a portable format that anyone can use.
Ethnic: natural community of men with racial, linguistic, religious or cultural affinities. Understand that Native Americans is not a race but an ethnicity. The race of the native Americans of all the American Continent is Mongoloid.The paleoanthropological and genetic evidence demonstrates that approximately 14,500 years ago the Mongoloids crossed the Bering Stretch.re you referring to American Indians or Indians from India, In either case there is your answer Historically, India Indians are of the Caucasoid race, while Native Americans â¦ are of the Mongoloid race. Of course today, there is no biological basis for race. 3 people found this useful.
â¢ NATIVE AMERICAN (noun). The noun NATIVE AMERICAN has 1 sense: 1. any member of the peoples living in North or South America before the Europeans arrived. Familiarity information: NATIVE AMERICAN used as a noun is very rare.he noun NATIVE AMERICAN has 1 sense: 1. any member of the peoples living in North or South America before the Europeans arrived. Familiarity information: NATIVE AMERICAN used as a noun is very rare.