Saturday, May 18, 2024
Home Logistics News How to write the investigation report on plastic bags? (primary school students)

How to write the investigation report on plastic bags? (primary school students)

by admin
0 comment

About 400 words. Give me the answer as soon as possible. I will thank you again. I don’t have a clue at all,

white pollution – plastic bag investigation report

respondents: plastic bags, an important role in white pollution.
since most of China’s urban waste treatment is not sanitary landfill or incineration to recover heat energy, but waste is moved and transported from the city to the suburbs for open stacking or shallow burial. In case of strong wind, plastic waste with light weight and large volume, especially ultra-thin plastic bags, will flow around in the wind and fly all over the sky (jokingly known as “film fluttering”) or hang on branches or electric poles, which is vividly compared to the “ten thousand national flags” on electric poles, Or spread along with the water to rivers, lakes, drainage and irrigation ditches, which is commonly known as white pollution.
white pollution mainly refers to the visual pollution and potential harm caused by pollutants to the environment.
visual pollution refers to the damage of discarded plastic bags scattered in the environment to the city appearance and landscape, such as various food packaging bags scattered in the natural environment, on both sides of railways, rivers and lakes, or ultra-thin plastic bags flying all over the sky or hanging branches. These bring adverse stimulation to people’s vision, which is called visual pollution.
potential hazards refer to the long-term environmental problems caused by the difficulty of decomposition of plastic bags after entering the natural environment. Its harm includes the following aspects:
⑴ the residues of plastic bags (mainly agricultural plastic mulch) accumulated in a large area in the soil accumulate for a long time, resulting in soil hardening, affecting the absorption of nutrients and water by crops, resulting in crop yield reduction.
⑵ plastic bags discarded on land or in water are swallowed by animals as food, resulting in death.
⑶ plastic bags entering domestic waste are light in weight and large in volume, which are difficult to handle. If it is buried, it will occupy a lot of land and is not easy to decompose for a long time. Domestic garbage mixed with plastic bags is not suitable to be piled up for chemical fertilizer. At present, the strongest reflection in society is visual pollution, and most people still lack enough understanding of the potential harm of plastic bags to the environment.

survey method: questionnaire survey, data query, calculation, analysis, etc.

banner

survey data: Yang Shuai’s family uses 34 plastic bags a week, Xu Hanwen’s family uses 25 plastic bags a week, Li Linqian’s family uses 100 plastic bags a week, Luo Han’s family uses 70 plastic bags, Peng Sihan’s family uses 68 plastic bags, and Xue Shijie’s family uses 74 plastic bags a week, According to statistics, a total of 371 plastic bags were used by the whole group in a week. The group used an average of 53 plastic bags a day. On average, the plastic bags used by the group every day can pollute 31800 square centimeters of land, amounting to 3.18 square meters, which is about 3 square meters. The total area of the school playground is about 1.8 hectares, or 18000 square meters. Assuming that each plastic bag pollutes 600 square centimeters of land, the whole playground can be polluted by 6000 plastic bags discarded by the group every day, that is, 16 years and 160 days.

online query data: according to the statistics of relevant departments, there were nearly 4 million tons of domestic packaging plastics in 1998 (including self-supporting ones), of which 30% of disposable packaging materials that are difficult to recycle will produce about 1.2 million tons of plastic packaging waste every year; The output of plastic mulching film is more than 400000 tons. Because its waste is mixed with a large amount of sand and soil, it is difficult to recycle. Usually, farmers fish them to the ground and burn them, and the recycling amount is very small; Disposable plastic daily necessities and medical and health supplies are about 400000 tons. Combined with the above, the annual output of plastic waste is more than 2 million tons.
in recent ten years, with the rapid development of commodity economy, transportation and tourism, the increase of the number and scale of cities, the generation of urban domestic waste has increased significantly. Plastic waste in the composition of municipal solid waste is also increasing rapidly. About 3-10% by weight and 20-30% by volume.
by 2000, the pollution caused by waste plastics will be about 50 million tons. The cumulative pollution in the next 10 years will reach 35 million ~ 40 million tons, which is an amazing figure. In recent years, the economic losses caused by environmental pollution and ecological damage in China are as high as 200 billion yuan per year, including 100 billion yuan of ecological damage. According to the sampling survey of Beijing, Tianjin and Shanghai, there are 1.8 ~ 2.5 billion plastic bags, one per capita per day; Agricultural film covers an area of 6.75 million square meters and hundreds of millions of beverage bottles every year. The total weight of these varieties is 50000 ~ 60000 tons throughout the year, which is 7% ~ 10% of the total weight of municipal solid waste (garbage).

harm to the environment: it leads to acid rain, destroys the ozone layer, intensifies the greenhouse effect, and provides a breeding place for mice, mosquitoes, flies and bacteria. Most plastic products contain harmful substances such as PVC and acrylonitrile. When they burn, they will produce HCl, which is one of the important reasons for acid rain. The production of foamed plastics involves the use of chlorofluorocarbons (CFC) and freon, resulting in excessive ultraviolet radiation, exacerbating the greenhouse effect and destroying the ecological balance of the atmosphere. Garbage will also release a variety of toxic chemical gases, such as dioxins. In particular, dioxin can make people lose weight, liver function disorder, nerve injury and induce cancer. As the residues on waste plastic packaging, such as food residues in fast food boxes and sugar in beverage bottles, will provide a hotbed for mosquitoes, flies and bacteria to survive and reproduce, especially in spring and summer, some common microorganisms such as bacillus, colorless bacilli, octococcus and old cocci can reproduce and grow rapidly on plastic packaging stacked or scattered in cities, and can also cause a large number of mosquitoes and flies to breed, Endanger the health of the urban public and affect environmental sanitation. In windy seasons, plastic bags flying with the wind can be wound around overhead power supply lines, causing short circuit accidents.

effective governance measures: it is reported that many cities in China have banned the use of such products. Beijing has banned the production and use of plastic bags less than 0.015mm since January 1, 1998. Xi’an, November 1, 1999. It is strictly prohibited to produce, sell and use disposable ultra-thin plastic bags with a thickness of less than 0.02 mm in the urban area. Tianjin has banned the production and use of plastic bags less than 0.025mm since October 1, 2000. Datong has banned the production and use of plastic bags less than 0.025mm since May 1, 2001. There is no relevant ban in Chengdu.

treatment methods: the treatment of white pollution can learn from the treatment countermeasures of foreign 3r1d, i.e. reduction, recycling, recycling and degradation, and implement measures such as provincial recycling (volume reduction, reduction), recycling (recycling) and harmless (degradable). In recent years, many substitutes have been developed, such as paper, pulp molding, plant fiber, whole starch and other tableware. Although they use natural materials as raw materials and are easy to decay and degrade, due to the addition of waterproof and oil proof agents, the decay and reduction are increased, and the difficulty of rapid degradation
and recycling, practice has proved that they still need a certain period to return to nature after use, which is slow and largely depends on environmental conditions.
in fact, white pollution is not the sorrow of plastics, but people’s own sorrow. In fact, the source of white pollution is not the material or articles themselves, but people’s behavior and habits. In our investigation, we found that almost everyone is using plastic bags for convenience, but few people know the harm of plastic packaging to the environment.
you know what? Each of us is not only the maker of environmental disasters, but also the victim of environmental disasters, but also the administrator of environmental disasters.
each of us has a common responsibility for environmental protection: care about environmental quality, supervise environmental law enforcement
participate in policy suggestions and choose green life.
each of us can participate in environmental protection by choosing a green lifestyle (5R lifestyle): saving resources and reducing pollution; Green evaluation and environmental protection purchase; Reuse and reuse; Classified recovery and recycling; Save species and protect nature.
let’s keep in mind that respecting nature is the need for human beings to cherish their lives.

Annex I:
data calculation results

1. Total number of plastic bags used by the group in a week:
34 + 25 + 100 + 70 + 68 + 74
= 59 + 170 + 142
= 371

2. Average number of plastic bags used by group members every day (keep the number in integer):
371 ÷ 7 ≈ 53

3 The area of land polluted by plastic bags discarded every day (assuming that each plastic bag pollutes 600 square centimeters of land, keep the integer):
600 × 53 = 31800 square centimeters
= 318 square decimeters
≈ 3 square meters

4. The time required for the plastic bags used by our group to pollute the land as large as the school playground (playground 1.8 hectares):
1.8 hectares = 18000 square meters
18000 ÷ 3 = 6000 days
16 years and 160 days

survey conclusion: for individuals, A few plastic bags are used every day, which can add up to a lot. After reading this calculation result, it is not difficult to find that this is only the consumption of plastic bags by six families, which can pollute 1.8 hectares of land in nearly 10 years. Based on the calculation of families in one class, families in the whole school, families in the whole county, families in the whole country and even families all over the world, the pollution brought by small plastic bags to the earth is obviously disastrous.

investigation report on the use of plastic bags after the implementation of the “plastic restriction order”
plastic bags not only bring convenience to people’s life, but also cause long-term harm to the environment. Because plastic is not easy to decompose, plastic waste, if not recycled, will become pollutants in the environment, exist permanently and accumulate continuously, which will cause great harm to the environment. Plastic shopping has become the main source of “white pollution”. The general office of the State Council issued a notice that from June 1, 2008, the paid use system of plastic shopping bags will be implemented in all supermarkets, shopping malls, market fairs and other commodity retail places, and will not be provided free of charge. A week has passed since the implementation of the “plastic restriction order”. We try to understand people’s current shopping habits and environmental awareness by understanding the current use of plastic bags
as supermarkets are the main places for people to shop and where plastic bags are widely used, we used our spare time to conduct an investigation in Wenyi store, Wumart supermarket in Hangzhou. The survey adopts the way of practical investigation, observing people’s shopping habits behind the supermarket cashier and making list statistics. The conditions of the three cash registers within sight were observed. Within 20 minutes from 7:15 to 7:35 PM, 57 people paid, including 25 men and 32 women, of whom 19 used plastic bags, accounting for 33.3% of the total. Among the 19 people who used plastic bags, 11 were male and 8 were female, accounting for 44% and 25% of the total number of their respective genders, accounting for 19.5% of the total 3% and 14%. A total of 22 people bought environmental protection bags, accounting for 38.8% of the total 6%, of which, men accounted for and women accounted for 14, accounting for 32% and 43.5% of the total number of their respective genders 75%, accounting for 14% and 24.5% of the total 6%。 Among them, 10 have their own environmental protection bags or plastic bags

You may also like

Leave a Comment

Soledad is the Best Newspaper and Magazine WordPress Theme with tons of options and demos ready to import. This theme is perfect for blogs and excellent for online stores, news, magazine or review sites.

Buy Soledad now!

Edtior's Picks

Latest Articles

u00a92022u00a0Soledad.u00a0All Right Reserved. Designed and Developed byu00a0Penci Design.