The main producing areas in China are Qinghai, Inner Mongolia, Xinjiang, Shanxi and other provinces in the northwest, accounting for a little more than 17% of the total salt production in China. In addition to lake salt, there are sea salt, well salt, mineral salt (rock salt) and other different types, the largest of which is Qarhan salt pond in Qaidam Basin. According to statistics, the salt extracted from this salt pond alone is enough for China/Kloc-0.2 billion people to eat for more than 4,000 years.
1. The total annual salt consumption in China is basically stable at 7 million tons (this amount is directly proportional to the population, and there will be no big fluctuations as long as the population does not change greatly), while the annual salt output in China exceeds 40 million tons, most of which are used as chemical raw materials. These abilities can easily produce enough salt once needed.
2. At present, the proportion of sea salt in the national salt is decreasing year by year, and people usually eat well salt. The main reasons are as follows: first, there are many impurities in sea salt, and the purification cost is high and uneconomical; Second, the sea salt field occupies too much land, and now the coastal beaches are very valuable, and gradually turn to seafood farming and land development, and the profit rate of salt production is too low. In fact, in the economically developed southern region, the sea salt field has long declined, which is purely due to economic laws.
3. Well salt reserves are very, very rich. There are hundreds of millions of tons in just one salt mine. It is not a problem for the people of the whole country to eat for hundreds of years, and it is also widely distributed. Sichuan, Hubei, Hunan, Shaanxi, Jiangsu, Henan and Jiangxi are all big producing areas, so transportation is not a problem.
At present, the circulation of salt in China is still monopolized by the state, and the price is strictly controlled. There is no need to worry about the price increase. Even if it is temporarily sold out, the supply capacity of salt companies around the country will soon ensure supply. Although the franchise system has various disadvantages, it still has advantages in ensuring the supply of salt.
Is it possible that well salt is contaminated by radiation?
1, well mineral salt is deposited in inland waters and basically does not coexist with other minerals. That is to say, this place used to be a sea, but later the sea water was buried by the earth's crust, leaving salt after the water evaporated. Therefore, large-scale salt mines are generally hundreds of meters thick salt beds, without mineral impurities, radiation is out of the question.
2. Well salt is mined with water. Generally speaking, it is to drill two pipes into the salt layer, one is clean water and the other is saturated brine (don't forget that salt is soluble in water), and then evaporate the saturated brine to get salt. This is not the mining method of coal mines and copper mines, so there is no possibility of radiation in the whole production process.
Most of the salt in China is mineral salt, which is abundant. Supply is not a problem, so there is no need to panic.