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.
Native American Indians. The Native American Indians are an important part of the culture of the United States. While their people have lived on this land for thousands of years, today their numbers are dwindling. Once, the Native Americans lived on this continent with little discourse and disruption.They were well fed, content, and established. In fact, the men and women usually were placed in typical roles.hile the late 1800's into the 1900's and beyond began to bring struggle to the Native American Indians, they fought a tough battle in pursuit of protecting their land.