-
We summarize the past, govern the present, look forward to the future, do not hold the past accountable, or understand the causes of smog, we cannot change nature, but we can change our own behavior, and everyone is responsible for protecting the environment.
First: it is car exhaust. Large vehicles that use diesel fuel are "repeat offenders" of PM10 emissions, including large buses, shuttle buses of various units, and large transport trucks.
Although gasoline-powered small cars emit gaseous pollutants, such as nitrogen oxides, they can easily be converted into secondary particulate pollutants in foggy weather, aggravating smog.
The exhaust of motor vehicles is the most important component of haze particles, and the latest data show that motor vehicle exhaust, coal, dust, and industry account for the smog particles in Beijing. However, with the advancement of automobile technology and the rise of oil quality, environmental managers have found that motor vehicle exhaust does not play a decisive role in the formation of haze weather, but as some cities with large car ownership, managers still need to control motor vehicle emission standards to avoid the formation of haze weather.
Second: the exhaust gases produced by burning coal for heating in winter in the north.
Third: exhaust gases emitted by industrial production. For example, metallurgy, kilns and boilers, mechanical and electrical manufacturing, as well as a large number of exhaust gases emitted from the combustion of kilns for automobile repair and painting and building materials production.
Fourth: Dust from construction sites and road traffic.
Fifth: the particle size of the growing particles, bacteria and viruses is equivalent to, when the humidity and temperature in the air are suitable, microorganisms will attach to the particles, especially the particles of oil smoke, and the microorganisms absorb the oil droplets and transform into more microorganisms, so that the growth of biological toxic substances in the haze increases.
Clause. Sixth, home decoration will also produce dust "haze", indoor dust is diffuse, not only harmful to the health of workers and users, increase the burden of cleaning, when the dust is serious, but also bring many hidden dangers to the decoration project. [4] [5]
In addition to meteorological conditions, the increase in the concentration of particulate matter (including coarse particulate matter PM10 and fine particulate matter) caused by industrial production, motor vehicle exhaust emissions, and coal burning for heating in winter is an important factor in the generation of haze. Nowadays, many cities are at a critical point in their pollutant emission levels, which are very sensitive to meteorological conditions, and air quality can meet the standard when diffusion conditions are good, and once encountering adverse weather conditions, air quality and visibility will immediately decline. The United States imports the Pwit Xintian cat.
-
This is the weather you want, and it's usually available.
-
That's a very difficult question.
-
The Arctic, you ask?
-
Jiujiang weather forecast, tomorrow (Saturday) temperature 25 31 cloudy breeze level 2. The day after tomorrow (weekend) 26 31 Cloudy with a light wind level 2.
-
Anyway, it's raining these days, so it's safer to wear two thin clothes...
-
April 23, Eye. The maximum temperature is 15 degrees. The lowest temperature is 6 degrees Celsius!
-
121 has a forecast for the day after tomorrow.
Or there is a 72-hour forecast for large cities.
-
Hello, I'm from Chongqing. The highest temperature in the main city on these two days was 14 degrees Celsius and the lowest temperature was 6 degrees. About 8 degrees above Fairy Mountain.
-
Xi'an Weather Forecast (2011-05-24 18:00) Date Weather Phenomenon Temperature Wind Direction Wind Tuesday 24th Night Cloudy Low Temperature 14 No Disturbance Sustained Wind Direction Light Wind Wednesday 25th Daytime Cloudy High 27 No Sustained Wind Direction Light Breeze Night Cloudy Low Temperature 16 No Sustained Wind Direction Light Wind Thursday 26th Daytime Sunny High 29 No Sustained Wind Direction Light Breeze Night Clear Low Temperature 16 Swirling Wind Breeze 27th Week Congdong Friday Daytime Sunny High 30 Whirling Wind Light Breeze Night Clear Low Temperature 17 Whirlwind Breeze Weather forecast for the next 4-7 days (released on 2011-05-24 18:00) Saturday 28th Daytime Cloudy High 31 Cyclone Wind Light Breeze Night Cloudy Low Temperature 18 Swirling Wind Light Breeze Sunday 29th Daytime Light Rain High Temperature 26 Swirling Wind Light Breeze Night Light Rain Low Temperature 16 Swirling Wind Breeze Monday 30th Daytime Cloudy High 27 Swirling Wind Light Breeze Night Cloudy Low Temperature 16 Seep Dry Rotating Wind Breeze Tuesday 31st Daytime Cloudy High Temperature 29 Rotating Wind Light Breeze.
-
The day after tomorrow, the weather in Xi'an is sunny 16 to 29 degrees, with a light wind, a good air index, and a strong ultraviolet intensity Forest fire danger level 2.
-
Cloudy with a high temperature of 33 and a low of 23
-
I don't know which city you're in.
If we are here in Shanghai, the temperature will be quite low in the next two days.
It's about 12 degrees Celsius.
It looks like it's raining on Wednesday.
This way, you can keep an eye on the weather forecast at any time.
-
InkWeather: This software can check the weather for the next few days. Not bad.
-
Tomorrow and the day after tomorrow will be sunny with sun, tomorrow it will be 18 degrees, the day after tomorrow will be 20 degrees, and it will be warmer.
Yes. Good diatom mud is characterized by high content of diatomaceous earth, and the material presents a weak alkali, which can be reduced to mud for secondary use.
Every day cool running peak instructor burst score collocation: >>>More
If you want to maintain an optimistic attitude every day, you need to maintain a positive attitude towards life, do what you like, and make friends with optimistic people. >>>More
The old fir half-raw lacquer guqin is a traditional Chinese musical instrument with a long history and cultural background. Its sound quality and timbre expressiveness are excellent, and it is suitable for playing all types of **. >>>More
Their home is in the form of ** learning and offline tutoring and teaching, so ** is relatively high. Parents can't afford it, and their children can only passively take classes once a week, which has no effect at all! >>>More