Industrial air pollutants, such as organochlorines and heavy metals, are carried to the arctic on air currents from populated areas. Lichens are a dominant life form on the tundra, and they are particularly vulnerable to air pollution because they lack roots and get the majority of their resources from the air. Because of this, lichens have historically been used as air pollution indicators.
Hurst is a city in Tarrant County, Texas, United States. Hurst is one of the Mid-Cities between Fort Worth and Dallas. it is local a suburb of Fort Worth. The city was founded by William Letchworth Hurst. As of the 2010 census, it had a population of 37,337.
CLIFTON, TX (BOSQUE COUNTY) CLIFTON, TEXAS (Bosque County). Clifton is at the junction of State Highway 6 and Farm Road 219, thirty-five miles northwest of Waco in southern Bosque County. It was founded in the winter of 1852â53, when the families of Samuel Locker, Monroe Locker, Frank Kell, and T. A. McSpadden settled in the vicinity.