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Sources of pollution

Xem 1-20 trên 21 kết quả Sources of pollution
  • A crucial trend for the future is the integration of wind power (WP) into the grid, in order to guarantee that the source of energy used to replace fossil fuels pollutes the environment. The generation source, the load, or the shortcircuit occurrence will have an impact on the grid, therefore, have a suitable solution to ensure its safe operation.

    pdf8p viengfa 28-10-2024 1 1   Download

  • The study presents the evaluation results of typical PAEs (6 PAE indicators) of the PAE family in water samples from Ho Tay Lake, Hanoi. The quality of lake water in general and in Hanoi in particular is influenced by many factors. The sources of treatment in lake water such as restaurant businesses and residential areas nearby, can degrade lake water quality.

    pdf10p vibecca 01-10-2024 3 1   Download

  • Groundwater serves as one of the important sources of water supply for Binh Thuan province, Vietnam during dry seasons. The article warned about water resource risks in Binh Thuan province and proposed remedial measures to ensure water resources for Binh Thuan province.

    pdf16p vibecca 01-10-2024 1 1   Download

  • This paper presents the applying of sound barrier wall for highways in Viet Nam studied from existing experiments in the world. Nowadays, pollution sources come from traffic noises, water sources and air environment. Especially, traffic noises such as transportations, trains and airplanes are much serious and effect population and country. On road traffic systems, noise generated by vehicles is always in high level and give discomfort to residents who live around both sides of highways.

    pdf7p vibecca 01-10-2024 1 1   Download

  • This study determined the heavy metals enrichments and their possible sources in industrial sludges from different sampling time. The results show that industrial sludge exhibits very high pollution for some typical heavy metals, especially Cu and Cd.

    pdf10p viyoko 01-10-2024 1 0   Download

  • This research was conducted to assess the current situation of traffic operation at the Lang Ha - Lang interchange. The results show that this is an area with a large number of vehicles, the direction of the vehicles is quite complicated with pollution sources at different elevations, which causes the pollution to spread further.

    pdf5p viyoko 01-10-2024 3 2   Download

  • Air pollution is getting worse in Viet Nam in recent years, particularly in big cities. The most important source of pollution are traffic and industrial activities. The paper "A Review on Current Status of Urban Air Pollution in Ho Chi Minh city and Ha Noi" reviews air pollution situation in Ho Chi Minh city and Ha Noi. We also recommend policies to tackle the problem: (i) upgrade the national air quality standard, (ii) install systematic and high-quality network of monitor stations, and (iii) remove means of transport that unmet emission regulations.

    pdf11p xuanphongdacy09 29-09-2024 3 1   Download

  • In this research, Ag-Ag3PO4/Cellulose aerogel composite was synthesized using hydrothermal reduction and freeze-drying methods. By combining the photocatalytic activity of the semiconductor AgAg3PO4 and cellulose aerogel synthesized from agricultural waste sources, the synthesized Ag-Ag3PO4/Cellulose aerogel composite has overcome the disadvantages of pure Ag3PO4 and significantly improved the photocatalytic activity.

    pdf12p vikwong 29-09-2024 1 0   Download

  • Industrial garden is a new approach, especially for competition in increasing pollution in the atmosphere. It helps easily to beautify the industrial areas. The lawn laid in vacant lands not only adds beauty but also cut down dust. These gardens are designed to reduce pollution and beautify the world. These units are the most sources of air, water, noise and soil pollution.

    pdf7p chauchaungayxua11 23-03-2021 4 1   Download

  • Researching and developing technology for producing magnetic graphite materials from Vietnamese flake graphite sources as materials to be applied in treating the organic polluted environment.

    pdf27p trinhthamhodang7 31-08-2020 30 2   Download

  • The paper deals with the use of the "memory effect" of a groundwater aquifer for the retrospective estimation of the sources of groundwater industrial pollution, and in order to obtain a reliable estimate of their impact on groundwater and surface water.

    pdf23p lucastanguyen 01-06-2020 24 3   Download

  • The reckless use of fossil fuels causes a lot of problems such as depletion of fossil fuels, rising oil prices, air pollution, and fine dust. 27% of the world's major energy sources are used for transportation, and most of the transportation fuels are used as fossil fuels.

    pdf9p lucastanguyen 01-06-2020 23 1   Download

  • In the current context of eco-pollution, the substitute of conventional plastics with bioplastics is a big confront. On account of that, a non-growth associated PHB production study was conducted using Zobellella species under submerged fermentation process. As a result, Zobellella species showed the ability to accumulate 2.2g/L of PHB at pH 8. 0, temperature 37oC, salt concentration 2% in modified growth medium containing vitamins. Then, primary structural characterization of extracted polymer was conducted by FTIR analysis. The high intense peak was obtained at 1720.

    pdf7p nguaconbaynhay6 24-06-2020 38 3   Download

  • As the urban area has high population density and intensive anthropogenic activities, there are a great number of sources of heavy metals in cities, placing a considerable influence on human health. Emissions of heavy metals may come from domestic waste, chemical industry and transportation. These emissions have been continuously adding heavy metals to soils and they will remain present for many years even after the pollution sources have been removed.

    pdf7p nguaconbaynhay5 16-05-2020 22 0   Download

  • The study uses data of a period 1968-2014 and cointegration test and corroborates a long- and short-run relationships. The results indicate that economic growth and energy consumption contributes in CO2 emissions in both long- and short-run. It means that increasing economic growth of the Kingdom has social cost on the economy in terms of pollution emissions. Based on findings, we recommend to use the alternative renewable sources of energy consumption to avoid the pollution effects of growth in Saudi Arabia.

    pdf6p tozontozon 25-04-2020 30 3   Download

  • Reseach report Environmental Toxicology "Some point of view about environmental pollution in long van tu canal" main content the urgency of topic, sources of pollution, effects of environmental pollution, solution,..

    ppt8p vuongsamrua 23-10-2017 119 2   Download

  • The earth’s surface is two-thirds water, yet most of this is undrinkable or unusable because it is either seawater or ice. Of the 1% that is available as fresh water, most is used for farming or industry. Fresh water pollution is the major problem because many rivers and streams are being polluted with pesticides, industrial waste, and sewage. In poor and developing countries, the addition of sewage to the sources of water leads to diseases, and even death. A United Nations’ report estimates that more than 78% of people drink from polluted water supplies.

    doc7p rrtrungrr11 27-03-2013 346 23   Download

  • Modern urban Air Pollution Stagnant air Continuing emissions "summer" (photochemical) smog: NO, NO2, CxHy, UV-rad: == O3 (reactions worked out on blackboard) Winter (cold weather) smog: fine or ultra-fine particles == health effects Mixture is different in different cities Traffic important source Toxicological mechanism still unknown Health effects even at low concentrations (from 40 mg/m3?)

    ppt38p dungdiem 21-02-2013 89 9   Download

  • Choose the word whose underlined part pronounced is differently from that of the rest. 1. A. compete B. sport C. effort D. introduce 2. A. sun B. solar C. safe D. sure 3. A. heat B. great C. release D. reach 4. A. polluted B. consume C. nuclear D. fuel 5. A. exhaust B. source C. enormous D. cause II. Choose the option that best complete the sentence or substitute for the underlined part. 6. My father, as well as his friends, _______ going to the stadium for a special football match this afternoon....

    doc3p neyugnmall001 24-08-2012 229 51   Download

  • But we are only now learning how to look after water. Acid rain has polluted as many as 18.000 lakes and our seas. And rivers are polluted with waste products. It is now very expensive to try to repair the damage which has been done. We have some hope for the future, though, because new sources of water have been discovered

    doc9p toiyeuvietnam0106 17-08-2012 297 35   Download

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