Selasa, 18 Maret 2014

The Impact Of The Pollution Of Nitrogen Oxides (NOx)

nitrogen oxides air pollution
The Gas nitrogen oxides (NOx) there are two kinds, i.e. the gas nitric oxide (NO) and nitrogen dioxide (NO2). Both kinds of these gases have different properties and both are extremely harmful to health. NO Gas that pollute the air difficult visually observed due to these gases are colorless and odorless. Whereas NO2 gas when you pollute the air easily observed from a very pungent smell and the colour is reddish brown. Air gas containing NO in the normal limit is relatively safe and harmless, unless NO gas are in high concentration. The high concentration of gas NO can cause disorders of the nervous system resulting in seizures. If this continues to be poisoning can lead to paralysis. NO Gas will become more dangerous if it's oxidized gas sehinggga gas into NO2.

Air which has been polluted by nitrogen oxide gas is not only harmful to humans and animals, but also harmful to plant life. The influence of NOx gas in plants, among others, the incidence of spots on the surface of leaves. At higher concentrations of the gas can cause necrosis, or tissue damage to the leaves. In a State like this leaf may not work perfectly as temapat the formation of carbohydrates through photosynthesis. As a result the plant cannot produce as expected. As many as 10 ppm NO concentration can lower the ability of photosynthesis the leaves up to about 60% to 70%.

Air pollution by NOx gases can cause the onset of Peroxy Nitrates are abbreviated Acetil with PAN. Peroxi Acetil Nitrates is causing irritation of the eye that causes the eye feels poignant and watery. Mix with other chemical compound PAN in the air can cause the occurrence of fog photos or Photo-chemical Smog Chemistry impaired environment.

The influence for health
Nitrogen dioxide are air pollutants generated in the combustion process. When present, the nitrogen dioxide nitrogen oxides are also found; a combination of NO and NO2 are collectively refer to nitrogen oxides (NOx).

At very high concentrations, which may only be experienced on the fatal industrial accidents, NO2 exposure can lead to lung damage that heavy and fast. Health effects may also occur at ambient concentrations are much lower as in the observation during the events of the pollution in the city. The evidence obtained suggested that the spread of possible ambient influences of chronic and acute, especially in the Sub-group populations affected by asthma.

NO2 oxidizing agent as being mainly the possibility of damaging cell membranes and proteins. At high concentrations, air duct will cause acute inflammation. Plus more, the spread in a short time--the influential to increased risk of respiratory tract infections. Although much of the control of the spread of that done, a fact clearly defines the relationship between the concentration or dose and the feedback is not enough.

For the dissemination of an acute, only very high concentrations (> 1880 Mg/m3, 1 ppm) affects the health of people; When people with asthma or lung disease are more susceptible to acute at lower concentrations.

Understanding greenhouse gases and Source

what is the main source of greenhouse gases
Greenhouse gases are gases in the atmosphere that causes the greenhouse effect. The actual gases naturally occurring in the environment, but can also arise as a result of human activity.

Greenhouse gases are the most numerous is the water vapor that reaches the atmosphere due to the evaporation of water from the sea, lakes and rivers. Carbon dioxide gas is the second largest. It arises from a variety of natural processes such as: volcanic eruptions; the breathing of animals and humans (who breathe in oxygen and exhale carbon dioxide); and combustion of organic material (such as plants).

Carbon dioxide can be reduced due to absorption by oceans and absorbed the plant to be used in the process of photosynthesis. Photosynthesis splits the carbon dioxide and release oxygen into the atmosphere as well as taking carbons atoms.

Water vapor
Water vapor is a greenhouse gas that occurs naturally and is responsible for most of the greenhouse effect. Water vapor concentrations fluctuate regionally, and human activity does not directly affect the concentration of water vapor unless local scale.

Carbon Dioxide
Humans have increased the amount of carbon dioxide released into the atmosphere when they burn fossil fuels, solid waste, and wood for heating the buildings, moving vehicles and generate electricity. At the same time, the number of trees that are able to absorb carbon dioxide increasingly diminish due to the encroachment of forests for timber or taken for the expansion of agricultural land.

Methane
Methane which is a major component of natural gas also include greenhouse gases. He is an effective insulator, able to capture 20 times more heat than carbon dioxide. Methane released during the production and transport of coal, natural gas, and petroleum. Methane is also produced from the decomposition of organic waste in landfills (landfill), can even be issued by certain animals, especially cows, as a by-product of digestion. Since the beginning of the industrial revolution in the mid-1700s, the amount of methane in the atmosphere has increased one and a half times as much.

Senin, 17 Maret 2014

Various Lake and Definition

Various Lake
Lake: basins occur due to natural events that hold and store the water that comes from rain water, springs or rivers
  • Amiktic Lake: a lake which is not suffered circulation, such as Lake which is covered by a layer of ice on a regular basis for many years
  • Delta Lake: a lake in terbentu River delta
  • Dimiktik Lake: a lake which is free its circulation twice a year, for example in spring and autumn as well as berstratifia
  • According to a certain layer of Kashi in the summer, and changing the layer with the reverse in winter
  • Lakes: Lake Distrofik ranged from 0.001 Micron start s/d 500 microns. Particles in the size of the tsb has a residence time of several seconds can even mencpai a couple of months in the air
  • Monomiktik Cold Lake: a lake with water temperature is never more than 4 derjat Celsius and only 1 period of circulation in summer i.e. at temperatures below 4 degrees Celsius.
  • Lake Monomiktik Lake temperature: hot water is never lower than 4 degrees Celsius, free in winter circulation at a temperature of 4 degree Celsius or above, on summer time-ply plated
  • Oligotrofik Lake: a lake which is only a few foods contain substances and typically contains dissolved O2 depends on large quantities without any trace of the stratification

The process of GREENHOUSE EFFECT

The process of GREENHOUSE EFFECT

This time I will explain briefly about the onset of a global warming.
When the solar radiation reaching the Earth's atmosphere, some heat will be reflected by the atmosphere in the form of infrared rays, and some will be passed on to the surface of the Earth. This causes the surface of the Earth is becoming warmer.

The surface of the Earth reflects back the heat and partially absorbed by the "greenhouse gases"--such as CO2, methane and NO atmosphere. This is the process that prevented irrespective solar heat into space.

The facts of GLOBAL WARMING

greenhouse effect
greenhouse effect
The facts of GLOBAL WARMING
Article on me this time, I will give a few facts about facts from the onset of global warming, among others, as follows:

The melting ice at the North and South poles
Increasing the level of the sea surface
Change weather/ilkim increasingly extreme
Heat waves are becoming increasingly ferocious
Endless glaciers of the world's fresh water resources