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.
Hurst, Berkshire. Hurst is a village in the civil parish of St Nicholas Hurst in the English county of Berkshire. Contents. Geography. The parish of St Nicholas Hurst is situated at grid reference SU798738, about 4 miles (6.4 km) north of Wokingham and 2 miles (3 km) south of Twyford in the county of Berkshire. It covers about 2.5 square miles (6.5 km2) and as such is the largest civil parish in the Borough of Wokingham.