Tự nhiênDo các hiện tượng tự nhiên

Tự nhiên
Do các hiện tượng tự nhiên gây ra: núi lửa, cháy rừng. Tổng hợp các yếu tố gây ô nhiễm có nguồn gốc tự nhiên rất lớn nhưng phân bố tương đối đồng đều trên toàn thế giới, không tập trung trong một vùng. Trong quá trình phát triển, con người đã thích nghi với các nguồn này.

Công nghiệp
Đây là nguồn gây ô nhiễm lớn nhất của con người. Các quá trình gây ô nhiễm là quá trình đốt các nhiên liệu hóa thạch: than, dầu, khí đốt tạo ra: CO2, CO, SO2, NOx, các chất hữu cơ chưa cháy hết: muội than, bụi, quá trình thất thoát, rò rỉ trên dây chuyền công nghệ, các quá trình vận chuyển các hóa chất bay hơi, bụi.

Đặc điểm: nguồn công nghiệp có nồng độ chất độc hại cao, thường tập trung trong một không gian nhỏ. Tùy thuộc vào quy trình công nghệ, quy mô sản xuất và nhiên liệu sử dụng thì lượng chất độc hại và loại chất độc hại sẽ khác nhau.

Giao thông vận tải
Đây là nguồn gây ô nhiễm lớn đối với không khí đặc biệt ở khu đô thị và khu đông dân cư. Các quá trình tạo ra các khí gây ô nhiễm là quá trình đốt nhiên liệu động cơ: CO, CO2, SO2, NOx, Pb,CH4 Các bụi đất đá cuốn theo trong quá trình di chuyển. Nếu xét trên từng phương tiện thì nồng độ ô nhiễm tương đối nhỏ nhưng nếu mật độ giao thông lớn và quy hoạch địa hình, đường sá không tốt thì sẽ gây ô nhiễm nặng cho hai bên đường.

Sinh hoạt
Là nguồn gây ô nhiễm tương đối nhỏ, chủ yếu là các hoạt động đun nấu sử dụng nhiên liệu nhưng đặc biệt gây ô nhiễm cục bộ trong một hộ gia đình hoặc vài hộ xung quanh. Tác nhân gây ô nhiễm chủ yếu: CO, bụi, khí thải từ máy móc gia dụng, xe cộ,..

Kết quả (Anh) 1:

NaturallyDue to the natural phenomenon causing: volcanoes, forest fires. Synthesis of polluting elements of natural origin very large but relatively evenly distributed across the world, not concentrated in one region. In the development process, humans have adapted to this source.IndustryThis is the largest source of pollution by humans. The polluting process is the process of burning the fossil fuels: coal, oil, gas to create CO2, CO, SO2: NOx, organic substances, yet flames: black carbon, dust, the process of loss, leakage on the technology, the process of shipping the volatile chemicals, dust.Characteristics: industry sources have high toxic concentrations, often concentrated in a small space. Depending on the process technology, the scale of production and use of fuels, the amount of toxic and hazardous substances, type will be different.TransportationThis is the source of major polluters for the air especially in urban and densely populated areas. The process of creation of the polluting gases is the process of burning the engine fuel: CO, CO2, SO2, NOx, CH4, The stone dust Pb gone with in the migration process. If the reviews on each means the relatively small pollution concentrations but if large traffic density and topography, planning of roads is not good then it will cause heavy pollution for the sides of the road.Student activitiesPollution sources is relatively small, mainly the thermal activity using the fuel but especially local polluter in a household or several households around. Polluting agent: CO, dust, emissions from appliances, vehicles, and.

Kết quả (Anh) 2:

Natural
Due to the natural phenomenon caused: volcanoes and forest fires. Synthesis of polluting elements naturally derived huge but relatively evenly distributed across the world, not concentrated in one area. In the course of development, people have adapted to these sources.

Industry
This is the biggest source of pollution of man. The polluting process is the combustion of fossil fuels: coal, oil, gas created: CO2, CO, SO2, NOx and unburned organic matter: soot, dust, process losses , leaked on line technology, the transport process of evaporating chemicals, dust.

Characteristics: industry sources have higher concentrations of toxic substances, often concentrated in a small space. Depending on process technology, the scale of production and the amount of fuel used, the toxic and hazardous substances will be different.

Transport
This is the largest source of pollution to the air, especially in urban areas and densely populated areas. The process of creating the polluting gas is combustion engine fuel: CO, CO2, SO2, NOx, Pb, CH4 The rock dust entrained in the moving process. In terms of media, the pollution levels are relatively small, but if a large traffic density zoning and topography, roads are not good, it will cause serious pollution to the roadside.

Activities
As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, .. Transport This is the largest source of pollution to the air, especially in urban areas and densely populated areas. The process of creating the polluting gas is combustion engine fuel: CO, CO2, SO2, NOx, Pb, CH4 The rock dust entrained in the moving process. In terms of media, the pollution levels are relatively small, but if a large traffic density zoning and topography, roads are not good, it will cause serious pollution to the roadside. Activities As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, .. Transport This is the largest source of pollution to the air, especially in urban areas and densely populated areas. The process of creating the polluting gas is combustion engine fuel: CO, CO2, SO2, NOx, Pb, CH4 The rock dust entrained in the moving process. In terms of media, the pollution levels are relatively small, but if a large traffic density zoning and topography, roads are not good, it will cause serious pollution to the roadside. Activities As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, .. The process of creating the polluting gas is combustion engine fuel: CO, CO2, SO2, NOx, Pb, CH4 The rock dust entrained in the moving process. In terms of media, the pollution levels are relatively small, but if a large traffic density zoning and topography, roads are not good, it will cause serious pollution to the roadside. Activities As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, .. The process of creating the polluting gas is combustion engine fuel: CO, CO2, SO2, NOx, Pb, CH4 The rock dust entrained in the moving process. In terms of media, the pollution levels are relatively small, but if a large traffic density zoning and topography, roads are not good, it will cause serious pollution to the roadside. Activities As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, .. roads are not good, it will cause serious pollution to the roadside. Activities As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, .. roads are not good, it will cause serious pollution to the roadside. Activities As pollution sources are relatively small, active mainly used for cooking fuel, but especially local polluters in a household or a few households around. Polluting agents mainly: CO, dust, exhaust fumes from machinery and appliances, vehicles, ..

Kết quả (Anh) 3:

naturalFrom these natural phenomena: volcanoes, forest fires. The pollution sources of synthetic elements are very large, but the natural relative average distribution is not concentrated in one region all over the world. In the course of development, humans have adapted to the source.IndustryThis is the biggest source of pollution, the human is the process of pollution from the burning of fossil fuels: coal, oil, natural gas, carbon dioxide, shrinkage, SO2, NOx, organic matter is not burning, smoke and dust leakage process, lost, rusty chain technology, the volatile chemicals in the process of transportation, dust.Features: industrial sources have high toxic damage, usually concentrated in a small space. Depending on program technology, the use of large-scale production of fuel, harmful substances and toxins will be different injuries.TransportationThis is the largest source of pollution for air especially in urban and densely populated areas. Air pollution is generated in the process of combustion engine: Fuel Co., carbon dioxide, SO2, NOx, PB silencer, CH4 dust coerced mobility in these rocks. If considered in each concentration of polluted medium, the relative density is small, but if the traffic planning of the terrain, the road is not good, the two sides of the road will be heavily polluted.activityPollution sources are relatively small, mainly to do activities using fuel boilers, but special local pollution in one or several households around. The main pollutants are: limited, dust, exhaust from home machinery, vehicles,...