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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]
The Illinois Waterway system consists of 336 miles (541 km) of navigable water from the mouth of the Calumet River at Chicago to the mouth of the Illinois River at Grafton, Illinois. Based primarily on the Illinois River , it is a system of rivers, lakes, and canals that provide a commercial shipping connection from the Great Lakes to the Gulf ...
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 ...
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.
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 ...
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. [1] [2] The more acidic the acid rain is, the lower its pH is. [2] Acid rain can have harmful effects on plants, aquatic animals, and infrastructure.
The rising Mississippi River tested flood defenses in southeast Iowa and northwest Illinois as it neared forecast crests in the area Monday, driven by a spring surge of water from melting snow.
Lakes and ponds can be very large and support a complex eco-system in which environmental parameters vary widely in all three physical dimensions and with time. Large lakes in the temperate zone often stratify in the warmer months into a warmer upper layers rich in oxygen and a colder lower layer with low oxygen levels.