Harmful substances in car tail gas

Solid suspension particles: solid components of suspended particles is complex, and has strong adsorption capacity, can all kinds of metal dust and strong adsorption carcinogen benzopyrene and pathogenic microorganisms. Solid suspension particles enter the body with the respiratory lung, to collision, proliferation, deposition, stranded in different parts of the respiratory tract, causing respiratory diseases. When accumulated to a critical concentration of suspended particles, will stimulate the formation of malignant tumors. In addition, the suspended particles also can directly contact with skin and eyes, blocked hair follicles and sweat glands of the skin, causing skin inflammation and eye conjunctivitis, or even cause corneal damage.
Carbon monoxide: combination of carbon Oil Painting Blog monoxide and hemoglobin in the blood than oxygen is 250 times faster times. Carbon monoxide by respiratory tract into the blood circulation, and the generation after the affinity of hemoglobin carboxyhemoglobin, so as to undermine the function of blood transporting oxygen to the organizations, against central nervous system, resulting in human feelings, reactions, comprehension, memory dysfunction, severe cases against blood circulatory system, lead to life-threatening. So, even trace amounts of inhaled carbon monoxide, might also lead to terrible hypoxic damage.
Nitrogen oxides: mainly refers to nitric oxide, nitric oxide to nitrogen dioxide, they are all harmful gases, in particular on respiratory system against. 9.4 mg/cubic metres of nitrogen dioxide exposure 10 minutes in the air, causing human respiratory dysfunction.

Misunderstanding of vehicle tail gas

1, ignore the harm of a qualified vehicle exhaust emissions. Now vehicle exhaust testing Department, detection of automobile tail gas exhaust emissions less than leave value for determining eligibility, this is normal. Different cars have different emissions license values are very small, so the prescribed license value range of auto emissions, air pollution still exist. More people believe that qualified, there is no harm, it is not right. Qualified vehicle exhaust emissions are not hard and fast. Car after traveling a certain distance, with the vehicle wear and other reasons, exhaust emissions are gradually increasing. New cars are qualified (emission within the scope of the license value), old car (running 20-300,000 km) emission value-for-license or close the license basically, this part of the automotive exhaust pollution is not small.
2, ignoring the other factors of auto emissions. Plus Size/ Maternity Wedding Dresses Detection is now behind a car plus a probe needle, which is to detect emissions at the end of. And ignore the car other parts of the crankcase and evaporative emissions. To comprehensive control the emission of pollutants, should consider the overall pollution emission control, otherwise it will be a stopgap, not receive good treatment effect.
3, neglect of governance the important links. Some cars before the test, in order to cross the border, in the car moving on the hands and feet, taking temporary measures by testing, is as usual after excessive emission. So cars can travel anywhere on the street, because there are tested and qualified logo. In order to cross the border, spend some money to repair departments, testing through. The detection cable, gas is still excessive, but qualified tag is already stuck in the car. Some foreign cars in Beijing, can also be paid to exhaust qualified logo. This governance as a whole, can be said to be a great deal of misunderstanding. Spent a lot of money, used to detect this is should be, but should spend more on governance, no governance means no detection.

What are the scopes that the biosphere covers?

Biosphere includes about 10,000 metres above sea level to 10,000 metres below sea level, including the atmosphere of the lower, upper layer of the lithosphere, the entire soil and hydrosphere. However, most organisms are concentrated in the 100 meters under the surface above 100 metres into the water of the atmosphere, hydrosphere, lithosphere, soil circle junction of circle, here is the core of the biosphere.
In the biosphere and reproduce all kinds of life, in order to obtain sufficient energy and nutrients to support life, in between these creatures, there is a relationship between eating and being eaten. “Feeding frenzy, small fish eat shrimp”, this saying reflects just such a simple relationship. However, to maintain huge life activities of the biosphere as a whole, such a simple relationship is clearly not acceptable. The Biosphere has it solutions.
Every creature in the biosphere, according to their role in material and energy flows, can be divided into: producers, mainly green plant, inorganic syntheses for organic it through Oil Painting Blog photosynthesis. Consumers, mainly of an animal (include of course). Some animals directly to the plant for a living, is called the level consumers, such as Antelope; some animals living by herbivores, called secondary consumers; also some small predatory meat animals, referred to as tertiary consumers. As for the people, it is omnivorous. Decomposers, principally in microbiology, the decomposition of organic matter to inorganic compounds. These three categories of organisms and the inorganic living environment, constitutes an ecosystem: producer intake of energy from inorganic environments, synthetic organic compounds; producers were level after consumers swallow, to pass their energy to the consumer level; level consumers after prey, then energy transfer to the secondary, and tertiary sth Finally, when organic life after death, decomposers break them down into inorganic, environment comes from, and attribution of complex environments. This eco-system is a complete set of material and energy flows. Only when biological and environment in the eco-system, under various long-term interactions between biological, biological variety and quantity of its production capacity is relatively stable state is reached, system of energy input and output to achieve balance in turn, only the energy balance, bio-life activities also to relative stability. Therefore, cannot be destroyed by any part of the ecosystem, otherwise it will disrupt the entire ecological system of order. Please treat all animals.
Biosphere is the largest eco-system. We must understand that plays a member of the consumer in the human and ecological systems, human survival and development is inseparable from prosperity of the entire biosphere. Therefore, protection of the biosphere is to protect our own. Therefore, from now on, their concern and care for ecological environment around you, to create our Green Home!

Definition and characteristics of sedimentary rocks

Sedimentary rock: is into rock under external force on the ground, after weathering, handling, formed by deposition of sediments such as consolidation, its main characteristics are: ① bedding structure significantly; ② ancient sedimentary rocks often contain biological sites, petrochemical fossil; ③ some splits, pore, tuberculosis,Sequin/Metal Handbags and so on. Common sedimentary rocks are: greater than 3 mm in diameter round pebbles and gravel and grinding materials cemented by other formed conglomerate from 2 mm to 0.05 mm diameter of sand grains cemented sandstone, made up of small particles of clay minerals in shale, main components by the calcite, hardness is not such as limestone.

What is the activity cycle of Sunspot?

Sunspots are the Sun’s surface temperature is relatively low and it is “black” of the local area. China is the world’s first discovery of sunspots countries as early as in ancient China, when the Chinese had discovered the existence of sunspots.
Sunspot groups appear in the surface of the Sun, astronomers called it “the sunspot group.” Formation of the sunspot cycle short, will disappear after the formation of a few days to several months, new sunspots will produce. Sunspots and solar activity is an important sign, its activities there is a clear cyclical, periodic average of 11.1 years. Sunspot Group on the Earth’s magnetic field and ionosphere will cause interference, and throws the Aurora Earth’s polar regions.
Sunspot is made up of the Umbra and Penumbra, the Oil Painting Blog umbra is part of the special black, Penumbra is not too dark, is made up of many fibrous texture. When large increase in the number of sunspot groups, and harbinger of the Sun will have dramatic changes. Man found sunspot activity has for thousands of years. Sunspot activity cycle of 11.2 years. Will the Earth’s magnetic field and various kinds of electronic products and electrical damage. About 4 years in time, sunspots continuously, more and more, activities intensified, the sunspot number reaches a great deal of the year, known as the solar activity Fengnian. In the next 7 years time, sunspot activity gradually weakened, sunspot is less and less, the year sunspot number minimal, known as the effects of solar activity year. International provisions, starting the sunspot cycle from 1755 to the first week, and then order. Started in 1999 as the 23rd week.

The relationship between solar flares and sunspots

Although scientists have been trying to figure out what caused the flares and coronal mass ejections projectile (it is always accompanied by numerous flares occur), but only in about the last ten years, observations reached a sufficient level, enough to reveal their complicated, clarify the physical mechanisms behind them. Thanks to the new technologies introduced in the 1990 of the 20th century. It turned out, key problem zentai Gloves is re-distribution of magnetic lines suddenly, this phenomenon is called reconnection (reconnection).

There was little relationship between the two, first place is not the same, sunspots appear in ball layer, visible to the naked eye, and flares in the chromosphere appears, you must use professional color ball telescope. Flare explosion is causing communication disruption causes.

But in the spectrum of the chromosphere appears spot associated with sunspots, now more spectrum spotted sunspot areas of heavy geographical concentration

Formation and development of avalanches can be divided into three sections

Formation and development of avalanches can be divided into three sections, the formation area, by area, stacked area.
Forming area
Avalanche formed most of the area in the top of the mountain, snow and thick parts. For example, high Cornice, roll over 50-60 degree snow slope, bottom of the hanging glacier landforms, such as parts, is the formation of the avalanche area.
By area
Avalanche of by area immediately in formation area of following, often is a section from Shang and Xia direct direct of u shaped Groove, because often has avalanche by, Oil Painting Blogdespite was snow cover, slot within still very smooth, basically no large of fluctuations or obstructions, long can up hundreds of m, wide 20-30 m or slightly large some, but does not too wide, otherwise sliding Xia of ice on does not is concentrated, formation can’t large of avalanche.
Stacked area
Stacked area also is immediately below the formation area, is due to sudden change in the gradient at the foot of sustained and place where the avalanche stopped, from a topographic point of view is the cone, also called avalanche cone.