Nowadays, people can't live without electricity almost every day. However, the batteries are exhausted. Let's take pagers as an example: at present, there are about 40 million households using pagers in China, and each household has at least 5 or 6 batteries a year, which costs 250 million batteries a year. This is really a big consumption!
A rotten battery in the ground can make 1 square meter of soil lose its use value forever; A grain of button cell can pollute 600 tons of water, which is equivalent to a person's drinking water for a lifetime. Among several substances that pose the greatest threat to the natural environment, batteries contain many kinds of mercury, lead and cadmium. If waste batteries are buried together with domestic garbage, or discarded casually, the leaked mercury and heavy metals will penetrate into the soil, pollute the groundwater, and then enter fish and crops, destroying the living environment of human beings and indirectly threatening human health. Just like the above example, if these users who have used pagers throw away their waste batteries, it will make 65438+500 million tons of water unusable and 250 million square meters of soil unusable! This is really amazing!
Once the human body absorbs these heavy metals, what diseases will occur?
Mercury: Mercury is a highly toxic heavy metal, which has great destructive power to human central nervous system. In 1950s, the Minamata disease that shocked China and foreign countries in Japan was caused by mercury pollution. At present, the mercury content of mercury-containing alkaline dry batteries produced in China reaches 1%? 5%, the mercury content of neutral dry battery is 0.025%, and the annual consumption of mercury in battery production in China reaches dozens of tons. Cadmium is easy to cause chronic poisoning in human body, and the main symptoms are emphysema, osteomalacia and anemia, which is likely to paralyze human body. Lead is the most difficult to excrete after entering the human body, which interferes with renal function and reproductive function. Eating aquatic products contaminated with mercury will cause methyl mercury poisoning, dizziness, numbness of limbs, memory loss, insanity and even death, and it will also affect pregnant women and cause fetal malformation.
Lead: Eating food containing lead will affect the synthesis of enzymes and normal heme, and affect the nervous system. Lead accumulates in bones and kidneys, which has potential long-term effects.
Cadmium: Cadmium is easy to cause chronic poisoning in human body, and the main symptoms are emphysema, osteomalacia and anemia. When it enters the bone, it will cause bone pain, osteomalacia and atrophy, and it is easy to cause pathological fractures. Finally, if it doesn't eat, it will die of pain.
Chromium: Chromium enters human body and distributes in liver and kidney, leading to hepatitis and nephritis.
Manganese: Excessive accumulation of manganese in the body can cause neurological dysfunction, and the early manifestations are comprehensive dysfunction, monotonous speech, dull expression, apathy and mental symptoms.
Zinc: Salt containing zinc can precipitate protein and irritate skin and mucous membrane.
After reading the above, children and some adults should still remember; Don't throw away the battery, throw it into a special waste battery recycling box, otherwise, it will bring disaster to everyone. Let's not throw away waste batteries and protect the earth, starting with me. Protect the earth, starting from all of us!