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Slag tailings are produced by "cooling-grinding-ball milling-flotation" and other processes of slag, while slag is produced by the flash smelting of the original ore. The utilization and environmental hazards of arsenic in slag tailings have become a focus of attention. This study on slag tailings reveals the presence of arsenic in copper smelting tailings from the mineralogy and leaching perspectives, and the noncarcinogenic and carcinogenic risks of arsenic to the human body were assessed by using the USEPA health

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How to Get Tested For ADHD Being diagnosed with ADHD can be a daunting experience. The process often involves doctors, specialists and tests. It can also be costly and difficult to obtain if your doctor will not recommend you. To qualify for a diagnosis, adults must have at least 6 symptoms that began in the early years of childhood (technically before the age of 12). The symptoms get into the way of everyday functioning. What is ADHD? ADHD is a mental illness that causes people to feel agitat