Similar Seas: Salt Grass, Shrimp, and Selenium

Many of the predictions and concerns about the future of the Salton Sea are based on historical examples of other salt lakes around the world, and their impacts on local communities—some beneficial, and some disastrous. Three examples of highly saline terminal lakes, the Aral Sea, Owens Lake, and the Great Salt Lake, show some of the possible outcomes for the Salton Sea.

The drying of the Aral Sea has intense negative effects on communities in Kazakhstan and Uzbekistan in terms of local economies, environments, and health. As the sea dried, dust storms and soil loss resulted in desertification of croplands and contamination of surface fresh water. [1] The shoreline retreated by miles, crippling the local economy, which was dependent on fishing and transportation. Due to extensive pesticide usage in the area, the dust from the Aral Sea contains DDT, PCBs, dioxins, and heavy metals, which have been found at high levels in pregnant and nursing women in Kazakhstan and Karakalpakstan. [2] Public health studies in the area have found widespread thyroid abnormalities, as well as lung malformations in children. [3]
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A Dusty Future

A drying sea

What happens if the Salton Sea dries up?

The climate in the area will shift, making winter more difficult for farmers in the area. The birds will have no place to rest along their migratory routes. However, most worrisome of all is the impact the drying sea can have on human health.

First, let’s imagine the scale of the Salton Sea. It is visible from orbit, shaped like a footprint in the sand, spread out over 343 square miles (889 km2). That is almost the size of Hong Kong and big enough to fit Manhattan Island ten times over. Now imagine that it has become a dry lakebed with very fine soil, perfect for being carried on the high winds common in the area. In the desert of Southern California, a sea of sand and gravel, more dusty space doesn’t seem like much of a concern. The major difference lies in the makeup of the dust and the sand. In the desert, the sand is made of silica and calcium carbonate, having the potential to clog up the lungs and irritate mucous membranes. In short, normal sand might give you a bad cough, but little else. In the case of the Salton Sea, dust can turn into a more serious health hazard.
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