Methods Used For Monitoring Air Sheds

Purpose: To learn about the international system of units (SI), to become familiar with common lab equipment and techniques, to gain proficiency in determining volume, mass, length, and temperature of a variety of items using common laboratory measurement devices, to learn to combine units to determine density and concentration, and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution.

7.The air dried filter paper was then placed on the weighing scale and results were recorded

Be sure to enter your trial volumes in the corresponding order that you entered your masses of your bleach

Atmospheric deposition is the process, long recognized by scientists, whereby precipitation (rain, snow, fog), particles, aerosols, and gases move from the atmosphere to the earth's surface. Materials reaching the earth in precipitation or as dry deposition originate from a variety of air pollution sources and can be harmful to the environment and public health. Acidic deposition is the most widely acknowledged form of atmospheric deposition, with well-known effects on lakes, streams, and forests. More recently, atmospheric contributions of nutrients have received increasing attention, particularly as a source of excessive nitrogen entering the Chesapeake Bay. In addition, atmospheric deposition may be a significant source of environmental

There are two main types of air pollution, particulate matter (PM) and ozone. Particulate matter is some tiny dust. For example, according to a beam of light at night there are countless dusts floating in the air. They are particle. Ozone is an invisible chemical gas in the air. When these gas touch with light will become smog. Factory and vehicles exhaust emissions have become the largest cause of PM and ozone pollution in the United States. If a plant wants to run, they need to burn fuel to provide power; however, a lot of particulate matter will float in the air when the factory burns fuel. When people drive cars can

Different from chemtrails, contrails are trails behind a jet, left by fuel burn-off or wing condensation, that will usually follow for about 10-15 lengths of the plane. The inconsistency between the two is that chemtrails do not evaporate, and tend to be much thicker. Instead of evaporating, they tend to grow larger. In some cases, so many are present that the entire sky seems to have an overcast

The volume of a small test tube and a thin-stemmed pipet were determined in this section of the lab. Water was poured into a small test tube until the water reached the very top edge of the test tube. The test tube was then emptied into a plastic 25 mL graduated cylinder and volume was measured and recorded into data table 3. A think-stemmed pipet was completely filled with water. Drops were carefully counted and emptied into the empty plastic 25 mL graduated cylinder until the water level reached 1 mL. The number of drops in 1 mL was recorded into data table 3. The thin-stemmed pipet had a total volume of 4 mL and that was also recorded into data table 3.

Air pollution has become a problem in our world today. Living in a busy city, I am curious to know, how polluted is our city air. To test this I am doing an experiment using petroleum jelly and flashcards. These flashcards will collect air particulate matter that consists of organic chemicals, metals, and soil or dust particles. I will put each flashcard in 4 different locations around the community. One will be put at the park, at my home, at school and by the freeway. My results were an interesting find. One location that I thought would have the least particles had more than I thought. Although my findings were interesting, my experiment had gotten tampered with.

The University of Texas Health Science Center has found that the amount of PM2.5 in the air in Houston, Texas can be linked with a small increase in mortality rate. Houston is largely industrialized which accounts for the emission of pollutants that negatively affect the people and environment. Home to America’s largest petrochemical industry, as well as many ports and forms of transportation, it’s little surprise that the concentration of PM2.5 in the city can be greater than some other cities. Scientists recorded the levels of PM2.5 in Houston over 11 years and found that though the PM2.5 particles’ mass was greater than the national standard on only 17 days out of the 11 years, on those single days, the mortality risk increased by 1.43%.

A widely studied area in the impacts aviation has is researching air quality. There are two areas which have been getting a lot of attention and becoming more important relating to air quality. The first area is known as fine particulate matter (PM). PM is known as an air pollutant containing tiny particles floating in the air, sometimes creating a foggy, hazy look in the air. Compared to NOx, another compound found in emissions, PM is known to be a greater impact (Waitz, Townsend, Cutcher-Gershenfeld, Greitzer, Kerrebrock, 2004). One challenge the aviation industry is trying to overcome is measuring the PM caused by aircraft and PM caused by outside factors non-aviation related. There are currently no uniformly accepted methods for measuring both the PM and PM precursors from

4. Prepare a vacuum filtration apparatus using a buchner funnel. Obtain one filter paper for each one of your samples, weigh them and record their mass in your notebook (label them with a pencil to be able to differentiate them later).

1. A representative sample was chosen by quartering (according to BS 812: Part 102: 1984) or by use of a sample splitter (Fig. 2C1-3). The sample to be tested should be the approximate weight desired when dry. For this experiment, about 3 kilograms of coarse aggregate was weighed.

3. Place about 3g of the mixture into the evaporating dish and carefully weigh it to the nearest 0.01g with the top loading scale and record its mass on the data sheet.

PM2.5 fine inhalable combustion particles connecting this to serious health problem including cardiovascular disease, aggravation of respiratory and premature deaths. PM10 standard to protection against the effect of dust, pollen, mold, etc. exposure to coarse particles (epa.gov). 1) Primary standard (health-based) and secondary-standard (welfare-based) protect public health with an adequate margin of safety, including the health of at-risk population/pre-existing condition. 2) Secondary standard (welfare-based) protection public welfare (the state of doing well) from adverse effects, including visibility impairment and known or anticipated on the environment.

Electrostatic precipitators are machines designed to reduce pollution in industrial applications. Typically fitted to the stacks of factories and power stations, electrostatic precipitators are designed to filter out dust particles from exhaust gases produced by industrial work. 99.9% of the dust particulates is captured by the precipitator, reducing the amount of dirty air passing into the atmosphere. (“Introduction to Precipitators”, 2oo7) Air pollution is a major problem in Hong Kong and across the globe. Power stations generate tonnes of pollution every year, deteriorating the air quality of the city. The waste they create is filled with dust and particulates, which can be detrimental to the