Lead is a heavy metal that can occur naturally in some rocks such as lead ores, while other heavy metals are manmade and may enter the environment from various sources. For example, many household consumer products (like paints, leaded gasoline, and toys) and industrial processes (like blast furnaces, mining operations, and smelting) are thought to contribute to the increasing levels of lead in the environment. Industrial activities have released certain heavy metals such as lead, mercury, and cadmium into the air, water, soil, and sediment, which can then enter the food chain. In addition, the metals can enter the human body via air, water, soil, food, and other means. The most common routes of lead exposure include inhalation of dust, contamination of food or soil, and ingestion of lead-contaminated water. Ingestion is a primary route in children, and inhalation is the major exposure route for adults. The main effects of lead can include damage to many parts of the body, especially the brain and nervous system. Symptoms of lead toxicity may include headache, drowsiness, irritability, abdominal pain, and abdominal distension. Lead toxicity can also cause anemia, sleep disorders, convulsions, and kidney failure.
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One of the drawbacks to this approach was that we needed to recompile every time we made even a small change to the code. This slowed everything else we were doing down and because we couldn't always have someone waiting for the application to finish building. 827ec27edc