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Diagram depicting the sources and cycles of acid rain precipitation. Freshwater acidification occurs when acidic inputs enter a body of fresh water through the weathering of rocks, invasion of acidifying gas (e.g. carbon dioxide), or by the reduction of acid anions, like sulfate and nitrate within a lake, pond, or reservoir. [1]
Floodwaters from the Chicago River entered Lake Michigan after the Chicago Harbor Lock was opened to "reverse" the river (back to the original flow direction), sending untreated sewage mixed with rain water into the lake. Due to the large number of structures impacted by flooding, the event was declared an Illinois state disaster area on July ...
In April 2013, persistent heavy rains caused widespread flooding, primarily impacting the Midwestern and Great Lakes regions. In a span of two days on April 17 and 18, heavy rainfall associated with a slow-moving storm system caused widespread flooding across rivers and areas, where rainfall amounts over 8 inches (200 mm) caused rivers to swell and crest, including the Mississippi River and ...
Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average.
An ice jam along the Sangamon River in Menard County causes water levels to rise Friday, January 26, 2024. Flooding has been reported in low-lying agricultural areas.
Watersheds of Illinois is a list of basins or catchment areas into which the State of Illinois can be divided based on the place to which water flows.. At the simplest level, in pre-settlement times, Illinois had two watersheds: the Mississippi River and Lake Michigan, with almost the entire State draining to the Mississippi, except for a small area within a few miles of the Lake.
The effects of acid rain are mostly seen in aquatic ecosystems. As the rain flows through the soil, the acidic water can drain away aluminum from the soil and them flow into streams and lakes. As more acid is released into the environment, more aluminum is also released. There are some plants and animals that are able to tolerate acid rain and ...
Several southwest Illinois areas recorded between 5 and 8 inches of rainfall, though one locality had more than 9 inches. Here’s what the National Weather Service St. Louis reported Wednesday ...