3.1.3. Variation Profile of Health Risks

Pollution in Changzhou had conspicuous effects on health. Total mortality was 5.5/103 in 2001, but reached 7.0/10<sup>3</sup> in 2015. The number of cases and mortality from cancer increased markedly in the past decades in Changzhou according to the data gathered from published literature. The number of inpatient cases of cancer in Changzhou was 1995 in 2002, and reached 6649 in 2011 (Figure 4). The mortality from cancer in Changzhou was 208.98/105 in 2011 and increased to 222.08/10<sup>5</sup> in 2015 [33]. Mortality was 214/105 in Wujin district in 2009 and increased to 242.6/10<sup>5</sup> in 2014 [36]. This was higher than the mortality in the whole city. The mortality from cancer in Liyang county was the lowest, although it increased from 151.88/105 in 2010 to 171.4/10<sup>5</sup> in 2014 [37].

**Figure 3.** Time variations of environmental pollution and population density.

**Figure 4.** Time variations of the case number and mortality of cancers in Changzhou.
