Determining Deciding the total eventual number of exposure related deaths Death is based on the linear no-threshold model , a contested statistical model , which has also been used Using in estimates of low level radon and air pollution exposure Causation .

An ancient Indian non-Christian work Employment `` Nagargarandhavaryola '' mentions Statement St. Thomas : In AD 52 `` the foreigner Thomas Sanyasi came to Arriving our village , preached Expressing_publicly there causing Causation pollution .

The main causes Causation of these protests Protest are the pollution Damaging of groundwater and environment , but also the threat of generating earthquakes Catastrophe .

In Changchun , air pollution recorded Recording at an all-time high and the levels of PM particulate matter rose Cause_change_of_position_on_a_scale to 845 micrograms per cubic metre on 22 October 2013 .