Nitrogen dioxide

in the atmosphere over the last three centuries. Before 1950, the majority of this pollution was created from the burning of coal for energy generation, space heating, cooking, and transportation. Under the right conditions, the smoke and sulfur dioxide produced from the burning of coal can combine with fog to create industrial smog. In high concentrations, industrial smog can be extremely toxic to humans and other living organisms. London is world famous for its episodes of industrial smog.

‘Smog’ is the outcome of the combination of the words ‘smoke’ and ‘fog’. Photochemical smog is the most common throughout the United States in large cities and mainly consists of ozone located in the troposphere. Photochemical smog occurs when sunlight reacts with pollutants in the air released by factories and car exhaust emissions. Smog plays a major role in environmental and personal health issues such as low birth rate, respiratory irritation, reduction of lung function, aggravated asthma, chronic

Many of us don’t realize that the air we are breathing could slowly be prematurely ending our life. Air pollution in the city can affect the human health in many ways. Air pollution is when the air is contaminated by harmful substances. This is caused by the burning of fossil fuels, industrial processes and smoke. Air pollution is often found in poor inner city neighborhoods. With greater amounts of air pollution comes a greater possibility of multiple health risks. Cardiovascular and respiratory

The Great Smog of London and the Scientific Implications in Today’s World Turn of the century London, the emergence of the middle class has forced the cultural bias to shift in favor of more homes, more people, and a lot of energy consumption. Science’s solution to the energy crisis is a seemingly perfect one: distribute and utilize a more available fuel. Coal burned slower than wood and therefore kept people and homes warm more resourcefully. For a while it seemed like a miracle solution. The

increases which affects the atmosphere, thereby causing environmental issues such as global warming, smog and even acid rain. These emissions are mainly due to non-stoichiometric combustion, dissociation of Nitrogen and impurities in the fuel and air mixture. Major emissions include Oxides of Nitrogen, Oxides of Sulphur, unburnt Hydrocarbons, oxides of carbon and other carbon particles or soot. Significant measures are taken by the automotive industries for several years to reduces the intensity of these

Earth is a planet is made up of a mixture of oxygen, nitrogen, carbon dioxide and several other gaseous elements that have created and sustained life as we know it. The universe is a vast space made of matter that varies from the smallest cosmic particle to a massive galaxy. Within one of billions of galaxies is home to planet earth, which is one of 7 planets in the Milky Way Galaxy, all orbiting a star. Based on what human life is conscious of, Earth is the only residence of intelligent life in

These include: the absorption of carbon dioxide and the production of ethanol. Carbon dioxide increases the dangers of the greenhouse effect. This traps in more heat, slowly heating the earth up. Greenhouse gases are a large contribution to global warming in today’s age, destroying the world slowly. Luckily, plants, like corn, absorb the carbon dioxide, lessening the amount of carbon dioxide in the air. Another benefit of growing corn would be the output of ethanol

The effects environmental nitrogen concentration on Chlamydomonas reinhardtii cells.   Introduction Chlamydomonas reinhardtii is a highly adaptive, eukaryotic single celled green algae able to assimilate nitrogen in any forms (Harris, 2001). This nitrogen is used for a variety of purposes, including the synthesis of chlorophyll, nucleic acids and proteins, and as such, is thought to play an important role in growth (Grossman, 2000). These algae are particularly important in the development of

a great potential to solve energy and environmental challenges around the world. Wastewater treatment with microalgae is a more environmental sound approach to reduce nitrogen and phosphorus and to remove heavy metals from wastewater. Microalgae can absorb significant amount of nutrients because they need large amounts of nitrogen and phosphorus for proteins (45-60% microalgae dry weight) and metals as micronutrients for their growth. William Oswald first developed the idea of treating wastewater

Since the Industrial Revolution, natural resources have been under increasing pressure. The significant changes in the amount of natural resources we have left have led to many issues, such as global public health and global development. Other areas affected include the loss of forest, water and air pollution, decrease in fresh water supply and degradation of soil. Today we are currently seeing dramatic increases in global population. As the world’s population continues to rise, natural resources