If you're in a coastal region, it pays to do a bit of homework on the cleanliness of the local fresh and ocean water supplies; algae blooms or cholera outbreaks will be widely reported.
China's three main lakes, Tai, Chaohu and Dianchi, have all had algae blooms in recent years.
Such algae blooms, which can choke other forms of aquatic life, have grown increasingly apparent in lakes and coastal waters recent years as a result of excessive use of agricultural chemicals.
Overfertilization can also harm crops — as well as human babies if nitrogen seeps into their drinking water — and often triggers algae blooms and "dead zones."
In xi 'an, capital of Northwest China's Shaanxi province, lakes and rivers have turned green and red as algae blooms flourish in the hot weather.
Wu A P, Zhang T T, He M, et al. preliminary study on the allelopathic inhibitionof Salicylic acid on red algae blooms fish and its relevant toxicology[J]. Journal of Biology, 2008,25(5):44-47.
The resort city has been the site of large algae blooms.
Thick Enteromorpha algae blooms block the small amounts of sunlight that reach deeper-dwelling marine life.
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