40' to 127° 56' E longitude and 42° 31' to 44° 40' N latitude. Neighbouring prefectures are: Harbin, Heilongjiang (N) Changchun (W) Siping (W) Yanbian (E) Liaoyuan (S) Tonghua (S) Baishan (S) Jilin City is situated in a hilly area near the Songhua River. There are four famous mountains surrounding Jilin City, which is North Mountain in the west, Long Tan Mountain in the east, Zhuque Mountain in the North, and Turtle Mountain in the south, plus Songhua River, it forms a bagua in Taiji pattern. North Mountain, called Beishan, is the most famous mountain in Jilin City and is home to several Buddhist Temples. The Qianlong Emperor reportedly visited the mountain. Climate Jilin City has a four-season, monsoon-influenced, humid continental climate (Köppen Dwa). Winters are long (lasting from November to March), cold, and windy, but dry, due to the influence of the Siberian anticyclone, with a January mean temperature of . Spring and autumn are somewhat short transitional periods, with some precipitation, but are usually dry and windy. Summers are hot and humid, with a prevailing southeasterly wind due to the East Asian monsoon; July averages . Snow is usually light during the winter, and annual rainfall is heavily concentrated from June to August. Environmental issues 2005 Jilin benzene pollution The Jilin chemical plant explosions were a series of explosions which occurred on November 13, 2005, in the No.101 Petrochemical Plant in Jilin City, killing six. The explosion severely polluted the Songhua River, with an estimated 100 tons of pollutants containing benzene and nitrobenzene entering into the river. The benzene level recorded was at one point 108 times above national safety levels. This caused downstream major cities including Harbin, Songyuan and Khabarovsk suspending their water supply for almost one week. Chinese leaders later had to apologize to the Russian government over its handling of the incident as the pollutants finally flowed into the Amur (Heilong) River, the major boundary river between China and Russia. 2010 Jilin floods and pollution Jilin was one of the worst-hit regions in China by rain and landslides in the 2010 summer China floods. On July 28, 2010, several thousand barrels, which contained toxic chemicals including trimethylsilyl chloride and hexamethyldisiloxane, about of a poisonous substance in each, were washed into the Songhua River by the floods from two chemical plants based in Jilin. There were reports that some barrels exploded on contact with water. By