SHANGHAI, Dec 4 (SMM) – Eleven cities in east China’s Jiangsu province has issued a yellow alert for pollution, the third-highest on the country's four-level system, since noon Tuesday December 3.

The cities are Nanjing, Wuxi, Xuzhou, Changzhou, Suzhou, Nantong, Huai’an, Yangzhou, Zhenjiang, Taizhou and Suqian.