日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

US EUROPE AFRICA ASIA 中文
China / Society

Rainfall and hot weather blamed as algae hits major lakes

By Zhu Lixin in Hefei (China Daily) Updated: 2015-08-12 07:44

Continuous rainfall and relatively high temperatures are the main reason behind recent reports of blue-green algae in some major lakes in eastern China, according to experts.

Blue-green algae recorded on July 1 near Bakou and Chuanchang, both on the eastern shore of Chaohu Lake in Anhui province, had increased by 852 percent and 479 percent respectively from levels reported last year, according to the provincial Environmental Protection Department.

Chaohu Lake is the country's fifth-largest freshwater lake.

Environmental authorities have issued two red alarms - the highest alert - for blue-green algae outbreaks in the lake since April, with the latest one announced late last month still in force. This level of alarm was rarely issued previously.

Xinhua News Agency said the algae has been hard to contain and the authorities are attempting to ensure clean water supplies for local residents, as the two areas are sources of drinking water.

"We are watching the water quality closely. Microcystin, a toxin that threatens drinking water, has not been detected. We have also stepped up purifying procedures to ensure water supply," said Zhu Yu, deputy director of the Environment Monitoring Center in Anhui.

Zhu said about 50,000 tons of emergency water supplies can be obtained from other water sources in 10 days' time.

Taihu Lake, the country's second-largest freshwater lake in neighboring Jiangsu province, has also reported its first major blue-green algae outbreak for seven years.

Zhu said, "Heavy rainfall in June and July produced a lot of nitrogen, phosphorus and potassium in Chaohu Lake, while the high temperatures in recent days have provided fine conditions for the algae's growth."

Earlier reports said that Dianchi Lake in Yunnan province had seen nine days of moderate algal blooms and another four days of moderate and severe blooms as of July 8.

Fang Shengzhong, deputy director of the environmental monitoring center in Kunming, the capital of Yunnan, said, "The average temperature in Dianchi Lake has risen by one degree centigrade and accumulated sunlight in the first half of the year increased by 170.6 hours from previous years."

To ease the situation, authorities for the three lakes have assigned additional workers to collect the algae. About 120,000 tons of it have been collected by dozens of environmental workers at Chaohu Lake.

More than 220 million yuan ($35.42 million) has been spent to contain blue-green algae in Chaohu Lake this year, according to authorities.

Xinhua contributed to this story.

zhulixin@chinadaily.com.cn

Highlights
Hot Topics
...
主站蜘蛛池模板: 久久久久久成人 | 日韩欧美国产高清91 | 亚洲爽妇网 | 日韩欧美亚洲视频 | 91大片在线观看 | 日韩免费小视频 | 国产青青操 | 欧美,日韩,国产精品免费观看 | 国产3区| 亚洲一区二区三区免费观看 | 亚洲精品日韩丝袜精品 | 亚洲欧美va天堂人熟伦 | 青青免费在线视频 | 欧美一区2区 | 欧美日韩亚洲色图 | 91色片| 国产在线视频91 | 高清一区二区三区视频 | 国产精品成人自拍 | 9.1人成人免费视频网站 | 日韩网站视频 | 又黄又爽又色的视频 | 自拍一页 | 国产精品一区二区不卡 | 免费日韩在线 | 国产又爽| 日本成人一区二区 | 国产精品视频导航 | av成人精品 | 青青国产在线 | 国产精品成人在线观看 | 99免费在线观看视频 | 黄色大片a级 | 亚洲视频天天射 | 国产精品网站在线观看 | 色伊人久久 | 久久久久久色 | 亚洲综合久久av一区二区三区 | 超碰男人的天堂 | 中文字幕视频一区 | 国产主播一区二区 |