Wednesday, April 21, 2010

Pesticides A pesticide poisoning

A pesticide poisoning occurs when chemicals intended to control a pest affect non-target organisms such as humans, wildlife, or bees.

Pesticides , if used carefully and the manufacturers, instructions followed carefully they do not cause too much harm to the indoor air.  

The most common exposure scenarios for pesticide-poisoning cases are accidental or suicidal poisonings, occupational exposure, by-stander exposure to off-target drift, and the general public who are exposed through environmental contamination 

top five problems smoke can cause

Here are the top five problems smoke can cause, and they make a very good case for using a smoke air purifier.
1. Lung Disease
As you might expect, breathing in smoke is extremely likely to cause a wide range of respiratory illnesses and lung diseases. Sadly, children are several times more likely to suffer from these illnesses because pound for pound they breathe in far more air than adults do due to the fact that their lungs are smaller and they breathe more quickly. One of the most common of these illnesses is asthma, and a growing number of children are starting to develop asthma. Not only can smoke initiate this condition, but it can also trigger attacks.
2. Bronchial Diseases
Besides respiratory diseases and conditions such as asthma, a number of other illnesses that are not limited wholly to the lungs or the respiratory system are triggered by smoke within the home. These can include coughs and colds, with those exposed regularly to smoke suffering from these conditions most often.However, conditions that are more serious include bronchitis and pneumonia, which can be particularly serious for asthmatics.
3. SIDS
If young children are more likely to suffer from asthma and bronchial diseases then babies and toddlers are even more prone to suffering from these conditions. For these youngsters even a very mild dose of smoke is enough to possibly contribute to the condition known as Sudden Infant Death Syndrome (SIDS).
4. Heart Disease
It’s a well known fact that smoking causes a range of heart diseases and circulatory problems, but breathing in any kind of smoke, whether sitting by an open fire or spending time in the kitchen, or even enjoying regular barbecues on the patio, can cause these same diseases if precautions are not taken.
5. Cancer
Ultimately, one of the more extreme outcomes that breathing smoke on a regular basis can lead to is cancer. And whereas smoke isn’t always possible to avoid, dealing with it effectively is very possible. Using kitchen exhaust fans and a good quality air purifier can make a huge difference in improving your family’s health and overall wellness.
It is nearly impossible to avoid generating indoor smoke completely, but using a high efficiency particle arresting (HEPA) air purifier will insure that the fine particulates and gases are trapped by filter rather than your lungs.A smoke air purifier is an expensive and low maintenance way to safeguard your family’s health 24 hours a day every day.

Tobacco smoking

A carbon footprint is "the total set of greenhouse gases (GHG) emissions caused by an organization, event or product" [1]. For simplicity of reporting, it is often expressed in terms of the amount of carbon dioxide, or its equivalent of other GHGs, emitted.
The concept name of the carbon footprint originates from ecological footprint discussion.[2] The carbon footprint is a subset of the ecological footprint and of the more comprehensive Life Cycle Assessment (LCA).
An individual, nation, or organization's carbon footprint can be measured by undertaking a GHG emissions assessment. Once the size of a carbon footprint is known, a strategy can be devised to reduce it, e.g. by technological developments, better process and product management, changed Green Public or Private Procurement (GPP), Carbon capture, consumption strategies, and others.
The mitigation of carbon footprints through the development of alternative projects, such as solar or wind energy or reforestation, represents one way of reducing a carbon footprint and is often known as Carbon offsetting.

Tobacco smoke generates a wide range of harmful chemicals and is known to cause cancer. It is well known that passive smoking causes a wide range of problems to the passive smoker (the person who is in the same room with a smoker and is not himself/herself a smoker) ranging from burning eyes, nose, and throat irritation to cancer, bronchitis, severe asthma, and a decrease in lung function.

April 19, 2010 -- Secondhand smoke exposure contributes to as many as 40% of the roughly 30 million cases of chronic sinusitis among adults in the U.S., a new study shows.
Chronic sinusitis, also known as rhinosinusitis, is defined as allergic and non-allergic sinus inflammation lasting at least three months. Symptoms can include, but are not limited to, nasal congestion, facial pain, headache, and daytime or nighttime coughing.
In a 2006 report, the surgeon general estimated that 60% of nonsmokers in the U.S., or 126 million adults and children, are routinely exposed to secondhand smoke.
Secondhand smoke exposure has been implicated as a risk factor for a number of respiratory ailments, including asthma and other conditions including heart disease, sudden infant death syndrome, and cancers of the lung and sinus.

From tobacco smoke to kitchens, fireplaces, candles and incense burners, brush and wildfires, smoke within the home is increasingly common, and during cold or hot months when the windows are closed, indoor air quality and health can deteriorate. The air quality in the average home is five times worse than outside, and with smoke adding to the problem, it’s no surprise that serious health problems can result.



 

Tobacco Users Smoke Crack

Tobacco Users Smoke Crack

Tobacco Users Smoke Crack
Recently uncovered internal tobacco industry memos and reports reveal that industry executives knew of the addictive nature of nicotine long before they disclosed this information to the public. In this profiled document , industry researchers discuss the similarities between nicotine, the addictive chemical in tobacco products, and drugs like cocaine, heroin and marijuana. Although the industry knew -- more than 30 years ago -- of the highly addictive nature of modern tobacco products, few people are aware that smoking cigarettes is similar to smoking crack cocaine.

The graphic at left illustrates the biosynthesis of alkaloids. Common alkaloids are cocaine, heroin and nicotine. As seen in the expanded illustration, nicotine and cocaine are very close "cousins" [2]. The media, and our society in general, place great emphasis on the negative social aspects of illicit substances like cocaine and heroin. Yet, as this evidence shows, nicotine and cocaine are essentially the same drug.

More importatntly, the table at left highlights the superior addictiveness of nicotine. Tragically, one quarter of the U.S. population functions daily only by taking hundreds of "hits" from a highly addictive chemical. This drug alters their mental functions, corrupts rationality, and literally, takes control over lives.

Indoor air pollution

Indoor air pollution

 t refers to the physical, chemical, and biological characteristics of air in the indoor environment within a home, building, or an institution or commercial facility. Indoor air pollution is a concern in the developed countries, where energy efficiency improvements sometimes make houses relatively airtight, reducing ventilation and raising pollutant levels. Indoor air problems can be subtle and do not always produce easily recognized impacts on health. Different conditions are responsible for indoor air pollution in the rural areas and the urban areas.
In the developing countries, it is the rural areas that face the greatest threat from indoor pollution, where some 3.5 billion people continue to rely on traditional fuels such as firewood, charcoal, and cowdung for cooking and heating. Concentrations of indoor pollutants in households that burn traditional fuels are alarming. Burning such fuels produces large amount of smoke and other air pollutants in the confined space of the home, resulting in high exposure. Women and children are the groups most vulnerable as they spend more time indoors and are exposed to the smoke. In 1992, the World Bank designated indoor air pollution in the developing countries as one of the four most critical global environmental problems. Daily averages of pollutant level emitted indoors often exceed current WHO guidelines and acceptable levels. Although many hundreds of separate chemical agents have been identified in the smoke from biofuels, the four most serious pollutants are particulates, carbon monoxide, polycyclic organic matter, and formaldehyde. Unfortunately, little monitoring has been done in rural and poor urban indoor environments in a manner that is statistically rigorous.
In urban areas, exposure to indoor air pollution has increased due to a variety of reasons, including the construction of more tightly sealed buildings, reduced ventilation, the use of synthetic materials for building and furnishing and the use of chemical products, pesticides, and household care products. Indoor air pollution can begin within the building or be drawn in from outdoors. Other than nitrogen dioxide, carbon monoxide, and lead, there are a number of other pollutants that affect the air quality in an enclosed space.

Volatile organic compounds
originate mainly from solvents and chemicals. The main indoor sources are perfumes, hair sprays, furniture polish, glues, air fresheners, moth repellents, wood preservatives, and many other products used in the house. The main health effect is the imitation of the eye, nose and throat. In more severe cases there may be headaches, nausea and loss of coordination. In the long term, some of the pollutants are suspected to damage to the liver and other parts of the body.
Tobacco smoke generates a wide range of harmful chemicals and is known to cause cancer. It is well known that passive smoking causes a wide range of problems to the passive smoker (the person who is in the same room with a smoker and is not himself/herself a smoker) ranging from burning eyes, nose, and throat irritation to cancer, bronchitis, severe asthma, and a decrease in lung function.

Pesticides ,
if used carefully and the manufacturers, instructions followed carefully they do not cause too much harm to the indoor air.
Biological pollutants include pollen from plants, mite, hair from pets, fungi, parasites, and some bacteria. Most of them are allergens and can cause asthma, hay fever, and other allergic diseases.
Formaldehyde is a gas that comes mainly from carpets, particle boards, and insulation foam. It causes irritation to the eyes and nose and may cause allergies in some people.
Asbestos is mainly a concern because it is suspected to cause cancer.
Radon is a gas that is emitted naturally by the soil. Due to modern houses having poor ventilation, it is confined inside the house causing harm to the dwellers.

Flyash

With the boom in population and industrial growth, the need for power has increased manifold. Nearly 73% of India’s total installed power generation capacity is thermal, of which 90% is coal-based generation, with diesel, wind, gas, and steam making up the rest. Thermal power generation through coal combustion produces minute particles of ash that causes serious environmental problems.
Commonly known as fly ash, these ash particles consist of silica, alumina, oxides of iron, calcium, and magnesium and toxic heavy metals like lead, arsenic, cobalt, and copper.
The 80-odd utility thermal power stations in India use bituminous coal and produce large quantities of fly ash. According to one estimate, up to 150 million tonnes of fly ash will be produced in India in the year 2000, primarily by thermal power plants and, to a lesser extent, by cement and steel plants and railways. This poses problems in the form of land use, health hazards, and environmental dangers. Both in disposal and in utilization utmost care has to be taken to safeguard the interest of human life, wild life, and such other considerations.
The prevalent practice is to dump fly ash on wastelands, and this has lain to waste thousands of hectares all over the country. To prevent the fly ash from getting airborne, the dumping sites have to be constantly kept wet by sprinkling water over the area. The coal industry in USA spends millions of dollars on lining fly ash dumping grounds. But in India, these sites are not lined and it leads to seepage, contaminating groundwater and soil. It lowers soil fertility and contaminates surface and ground water as it can leach into the subsoil. When fly ash gets into the natural draining system, it results in siltation and clogs the system. It also reduces the pH balance and portability of water. Fly ash interferes with the process of photosynthesis of aquatic plants and thus disturbs the food chain. Besides, fly ash corrodes exposed metallic structures in its vicinity.
In Delhi, the problem of fly ash is particularly severe as three power stations are located here. Being very minute, fly ash tends to remain airborne for a very long period leading to serious health problems as the airborne ash can enter the body. It causes irritation to eyes, skin, and nose, throat, and respiratory tract. Repeated inhalation of fly ash dust containing crystalline silica can cause bronchitis and lung cancer.
            
Tackling the problem of fly ash
Fly ash management has taken considerable strides over the past few years. Researches have been attempting to convert this waste into wealth by exploring viable avenues for fly ash management. Fly ash is oxide-rich and can be used as the raw material for different industries.
Today, fly ash bricks can be used as a building material. The American Embassy in India has used fly ash bricks in some of its recent construction. Use of fly ash as a part replacement of cement in mortar and concrete has started with the Indian Institute of Technology, Delhi taking the lead. Use of fly ash in the construction of roads and embankments has been successfully demonstrated in the country and it is gaining acceptance. The NTPC (National Thermal Power Corporation) is setting up two fly ash brick manufacturing plants at Badarpur and Dadri near Delhi.
At TERI, researchers have proven that fly ash dumps can be reclaimed by suitable addition of organic matter and symbiotic fungi, making it commercially viable for activities like floriculture and silviculture. TERI researchers have successfully reclaimed a part of an ash pond at the Badarpur Thermal Power Station by introducing a mycorrhizal fungi-based organic bio-fertilizer. As the fungus germinates, it sustains on the partner plant and quickly spreads to the roots and beyond. It improves the plant's water and nutrient uptake, helps in the development of roots and soil-binding, stores carbohydrates and oils for use when needed, protects the plants from soil-borne diseases, and detoxifies contaminated soils. This helps in keeping both air and water pollution under control. It also helps revive wastelands and saves millions of litres of precious water from going down the fly ash slurries. Marigold, tuberose, gladiolus, carnation, sunflower, poplar, sheesham, and eucalyptus now grow at the demonstration site of the power station.
Use of fly ash in agricultural applications has been well demonstrated and has been accepted by a large number of farmers.
The National Capital Power Station of the NTPC has come up with an innovative technology for commercial utilization of this by-product. Known as the dry ash technology, it is considered environment-friendly. Under the dry ash technology, the fly ash is collected in huge mounds with a filter bed provided at the bottom of the mound. Grass is planted on the slopes of the fly ash mounds and polymer layering is also done to prevent the ash from being blown by the wind. Fly ash treated by this method develops certain physical properties that make it more suitable for commercial purposes.

Acid rain

Another effect of air pollution is acid rain. The phenomenon occurs when sulphur dioxide and nitrogen oxides from the burning of fossil fuels such as, petrol, diesel, and coal combine with water vapour in the atmosphere and fall as rain, snow or fog. These gases can also be emitted from natural sources like volcanoes. Acid rain causes extensive damage to water, forest, soil resources and even human health. Many lakes and streams have been contaminated and this has led to the disappearance of some species of fish in Europe, USA and Canada as also extensive damage to forests and other forms of life. It is said that it can corrode buildings and be hazardous to human health. Because the contaminants are carried long distances, the sources of acid rain are difficult to pinpoint and hence difficult to control. For example, the acid rain that may have damaged some forest in Canada could have originated in the industrial areas of USA. In fact, this has created disagreements between Canada and the United States and among European countries over the causes of and solutions to the problem of acid rain. The international scope of the problem has led to the signing of international agreements on the limitation of sulphur and nitrogen oxide emissions.