2. Wooden chopsticks. It must be noted that wooden chopsticks are absolutely forbidden to be used when they are moldy. Because boiling hot water will dissolve the toxic substances in wooden chopsticks.
3.shampoo. Some shampoo instructions will emphasize that its main ingredients are natural and healthy. But the actual results show that they are all mixed with activator. Because this chemical, when it comes into contact with hair, will cause serious damage to our hair and scalp. Because of the use of shampoos mixed with these ingredients, more and more children suffer from allergic dermatitis.
4, electric mosquito coils. Although electric mosquito-repellent incense is very fragrant, it also has the function of killing insects. If it is used for a long time, it will affect the immune system and nervous system, which is harmful to it. Be careful.
5, clothing insect repellent. Benben is a carcinogen in the insect repellent for clothes. In addition to removing mosquitoes, it will weaken the nervous system. It contains chemicals that may cause cancer, so it needs special attention.
The causes of the influence of "toxic chemicals" on human life and health and the measures to avoid harm: food mildew and qualitative change-poisoning caused by biological infection.
Mildew and qualitative change caused by food shelf life.
Moldy wheat and barley
Yellow rice
Changmao mantou
Spot cake
Moldy sugarcane
Expired milk powder
Time-honored white sugar
Long-term storage of honey
leftover tea from the previous day
Sweet potato with black spot
Longevity vegetables
Mildew day lily
Pumpkins with an alcoholic taste.
Overnight tremella decoction
Moldy ham
Moldy eggs
Discolored shrimp and crab
Dead eels and dead turtles
Stale fish
Glowing food
Fresh meat with yellow fat
Hongyou fresh meat
Smoked fresh meat
Fat canned food
Qualitative change caused by improper storage
Fill beer in a thermos bottle.
Long-term storage of edible oil in plastic barrels
Use stainless steel utensils to store salt, soy sauce and vinegar.
Use plastic bottles and metal pots to fill acidic drinks.
Store milk in a thermos.
Beer should not be kept for a long time after it is opened.
Cooking wine cannot be stored for a long time after opening.
Cooking oil should not be stored for more than one year.
Not suitable for eating vinegar with mud.
Toxic plastic packaging
Secondary bacterial pollution
Unpackaged food
Bulk minced meat (meat stuffing)
Sealed food cannot be eaten after destruction.
Store fresh vegetables in the refrigerator.
Don't use the refrigerator as a safe.
Frozen fish does not remove gills and internal organs.
Fish frozen for too long.
Thawed food is refreezed.
Two taboos should be avoided when storing frozen food.
Fresh eggs are put directly in the refrigerator.
Poisoning caused by bacterial infection
Sick chickens are inedible.
Don't eat chicken or duck with lumps.
The three glands of domestic animals are inedible.
Sheep tendon can't be eaten.
Rabbit smelly glands can't be eaten.
Shrimp rectum can not be eaten.
Livestock meat dates are not edible.
You can't eat the head of an old chicken.
Chicken can't be eaten
Chicken lungs can't be eaten
If the chicken dies, you can't eat it.
Livestock and poultry that have died of self-death, epidemic death or being killed shall not be eaten.
Deteriorated pork
Meat with blood spots is inedible.
Water-injected meat bacteria concentration camp
Pork with white spots is not edible.
Meat can't be eaten if it doesn't change color.
Unedible fish pieces
dried persimmon
Seafood should not be eaten cold overnight.
Seafood must be washed before eating.
Hairy eggs are more harmful.
Slaughtering pigs, cattle and sheep without permission
Toxic milk powder
Is soy sauce as fresh as possible?
Roadside food stall
Beware of "gutter oil"
Microorganisms have both good and bad effects on human health. For example, in the digestive tract, there are bacteria that help you digest food and bacteria that can make you diarrhea.
There are many kinds of microorganisms. It is generally believed that bacteria and viruses, common microorganisms, are harmful to human body, but in fact many microorganisms are beneficial to human body. For example, there are many beneficial microorganisms in our body, the most famous is lactic acid bacteria, which can help digestion, and there are many edible fungi. For example, some mushrooms that we often eat are actually the fruiting bodies of fungi. The famous Ganoderma lucidum is also a fungus, and Ganoderma lucidum is an annual plant. The so-called Millennium Ganoderma lucidum is actually a wrong statement. Of course, there are many harmful microorganisms, such as Penicillium, various viruses such as the famous HIV, SARS, hepatitis B virus and rabies virus.
On the positive side, chemistry laid the foundation of modern society, especially represented by the first and second industrial revolutions, and created the most basic means of survival for human development. The drugs it produces have greatly prolonged the average life span of human beings, and the chemical fertilizer has increased the grain output and solved the grain problem.
Non-standard chemical production has also produced a lot of waste and pollution, destroyed the living environment of human beings and seriously affected human health, such as Los Angeles fog, London fog and Minamata disease in Japan.
Therefore, success is also chemistry, and failure is also chemistry.
Effects of organic planting and chemical planting on human health Organic planting will not leave harmful residues on plants ~ ~ such as stupidity ~
Chemical planting will leave harmful residues ~ ~
Most of these residues are carcinogens ~ ~
The impact of environmental pollution on human health? 1, the harm of air pollution to human body
Air mainly contains nitrogen and oxygen, among which oxygen is the most needed by people, animals and plants, accounting for about 21%of air; If the oxygen content in the air drops to 16%, the burning candle will go out; If it drops to 7%, people and animals will soon suffocate. The air also contains water vapor, carbon dioxide, sulfur oxides, nitrogen oxides, dust and other gases and substances. If the content of sulfur oxides, nitrogen oxides, dust and other harmful gases and dust in the air is too high, the air will be polluted. The more these harmful gases and dirty things are mixed in the air, the more serious the air pollution is, and the greater the harm to people, animals and plants. Air pollution first harms people's health, then affects the growth of animals and plants, and also causes global climate change.
Air pollution leads to human respiratory diseases, leading to an increase in population mortality. The mortality rate of lung cancer in heavily polluted areas of Chongqing is increasing year by year, exceeding 50 people/65,438+10,000, which is 4.7 times that in relatively clean areas. The mortality rate of lung cancer in individual blocks in Changsha is as high as 94 .36/65,438+10,000.
2, the greenhouse effect, the harm of climate warming to human body.
In recent decades, due to the influence of human activities, especially the sharp increase of energy consumption and the destruction of forests, the content of carbon dioxide in the air has been increasing, making the greenhouse effect stronger and the global climate warming. This will increase the incidence of respiratory diseases, cancers and headaches, and contribute to the occurrence and spread of tropical epidemics such as malaria.
3. The influence of acid rain on human production and life.
Acid rain is called death in the air. It can acidify soil and lakes, thus making forests decline and wither, and many aquatic organisms cannot survive. Thus affecting human production and life. Moreover, acid rain will erode cultural relics and buildings.
4. The influence of water pollution.
The consequences of water pollution are serious, which not only causes losses to industrial and agricultural production, but also greatly reduces the catch of freshwater fish. The output of many rare fish species, such as Yangtze River shad and Heilongjiang salmon, decreased sharply, and some even disappeared. Fish deaths and human and animal poisoning incidents caused by national pollution frequently occur, and the incidence of digestive cancers such as liver cancer, stomach cancer and esophageal cancer is increasing year by year. The water pollution in China has reached the point where it must be treated.
Noise pollution has a great influence on residents' life and health.
According to the statistics of 29 environmental protection departments, more than 30% of the people's letters and visits reflect the noise problem. The incidence of deafness, hypertension, heart disease and neurasthenia in some factory workers is as high as 30% ~ 60%. According to the statistics of the Department of Otolaryngology, Shanghai First Hospital, about 1/3 of patients with otopathy is caused by noise. In some areas, noise has threatened the intellectual development of teenagers. According to the forecast of relevant departments, by the end of this century, 85% of urban residents in China will be unable to work and live normally unless measures are taken.
The influence of microorganism on human health and life? Thank you. We have Escherichia coli in our digestive tract, which can help us digest. There are many kinds of microorganisms, some of which are harmful to human body, such as tetanus Bacillus and fungi that cause colds. Some of them are mutually beneficial to human beings, such as Escherichia coli I mentioned just now, and some are useful to human beings, but I forget which ones! Microorganisms include all kinds of fungi, cocci, bacilli and bacteria ... Many mushrooms we usually eat are fungi. Coccidae are not in contact with each other in general life, and bacteria are everywhere around us. Because human beings have an immune system, they are not so vulnerable. In fact, there are many secondary metabolites of microorganisms that can be provided to humans as therapeutic drugs, such as penicillin and erythromycin. I haven't seen biology for half a year, and now I only remember these. I hope I can help you, thank you!
What are the impacts of climate on human health? The main conclusions of the study on the impact of climate change on human health. Global climate change often leads to drastic changes in local climate and weather, which has a wide range of impacts on human health, including positive and negative impacts, but overall, the negative impact exceeds the positive impact.
(1) The direct impact of climate change on human health is the thermal effect caused by extreme high temperature. Global warming seems to be accompanied by the increase in the frequency and intensity of heat waves, making summer hotter and winter milder. The increase of humidity intensifies the influence of extreme high temperature on human health in summer. In temperate regions, the daily death toll increases during high temperature. For example, during the Chicago 1995 heat wave in the United States, more than 500 people died, among which the elderly had the highest mortality rate. In the future, with the increase of heat wave frequency and intensity, the number of deaths and serious diseases caused by extreme high temperature events will increase.
The impact of heat wave on health is greater in urban areas than in suburbs and rural areas. Due to the "heat island effect", the high temperature in urban areas is not only high, but also lasts for a long time. Studies have shown that continuous high temperature has a greater impact on mortality than instantaneous high temperature. The air pollution in urban areas is also very high, and heat waves are often associated with high pollution levels. During the American heat wave 1995, it is estimated that more than half of the deaths were caused by the aggravation of air pollution at that time.
(2) In many temperate countries, the mortality rate has obvious seasonal variation. The mortality rate in winter is higher than that in summer 10% ~ 25%. Some studies have pointed out that the increase of heat-related mortality will be greater than the decrease of cold-related mortality. It has also been pointed out that in the case of climate warming, the mortality rate in winter may drop more than that in summer. Due to global warming, it is estimated that by 2050, the number of cold-related deaths will decrease by 20,000. In Europe, when the temperature drops below 18℃, the death percentage increases with the temperature change of 1℃, which is greater in warmer countries than in colder countries. In North America, the increase of winter mortality is related to snowfall and snowstorm.
(3) The impact of climate change on human health is related to the frequency and intensity of extreme events caused by climate change. Many studies show that the impact of floods on human health can be divided into short-term, medium-term and long-term effects. The short-term impact is mainly casualties, the medium-term impact is mainly the increase of infectious diseases, and the long-term impact is the mental depression caused by economic difficulties and the loss of life and property caused by floods. Drought aggravates the original malnutrition by affecting the reduction of grain production, causing famine and affecting human health. The impact of drought on health also includes diseases caused by water shortage. In the period of drought and water shortage, water can only be used for cooking, but not for sanitation, so the risk of disease increases and epidemic diseases may occur.
3. Uncertainty analysis of research on the impact of climate change on human health. At present, there are still many scientific uncertainties in evaluating the impact of climate change on human health. The reason is:
(1) Climate change is usually accompanied by other environmental changes, and most diseases are caused by many reasons. It is difficult to distinguish the pathogenic effect of climate factors from the comprehensive effect of other factors.
(2) It is also very difficult to determine the sensitivity of human health to climate change. The response of human health can be caused by human endogenous characteristics, and it can also be caused by the related environment that affects human sensitivity to climate change.
(3) When predicting the possible impact of climate change on health, it is difficult to accurately predict the possible changes in society, economy, population, technology, health and medical care in the coming decades.
(4) There are three main uncertainties when simulating the impact of climate change on health. One is the statistical change of "normal value"; Secondly, select the key parameter values in the model approximately; Third, due to incomplete knowledge, imperfect pattern structure relationship is inevitable.