Trihalomethane Research Paper

Did you know some byproducts of of chloramine are way more toxic than chlorines? A byproduct is a secondary or incidental product formed from the first. In the article it states that “ Chloramines are widely used in the U.S, and water providers in the East Bay and San Francisco already rely on the source. Another reason to why Chloramines are dangerous because it is toxic to aquatic life, including the mosquito fish, the mosquito fishes are put into our ponds to control the mosquito populations.

Though they are considered to be one of the most swimmer friendly chemical sanitizers available and effectively kill bacteria and algae in pool water. Biguanides also stay in the pool water longer than most other sanitizers, making it easier to maintain other than weekly use of a hydrogen peroxide based oxidizer. Ionization is a natural alternative to common pool chemicals. It uses copper and silver to kill bacteria, viruses, and prevent algae and chlorine is only needed for weekly shock treatments. On the downside, high levels of copper can lead to green hair and staining on pool surfaces.

Tetrachloroethylene is a clear, nonflammable liquid, and is a commonly used solvent that has been in commercial use since the early 1900s. It can be found in water repellant, paint remover, printing ink, glue, sealant, polish, and can also be used to make other chemicals. Although it has been detected in small amounts in the air and in some sources of drinking water, the most common source of exposure is in the industries that use this chemical. Such industries are the dry-cleaning business, where it is used as a solvent, and businesses that degrease and clean metals, or need to dissolve greases and oils from fabrics. Because Tetrachloroethylene is a chlorinated hydrocarbon, it is a central nervous system depressant, and can easily enter the body through respiratory or dermal exposure, allowing this to be taken into the body dangerously easy.

Natalie Koch Bio 2 Metridium The metridium, which is also known as the plumose anemones, is a sea anemone that is classified under the kingdom Animalia and the phylum Cnidaria. Which is the same phylum as jellyfishes and corals. The metridium is typically found in cooler waters of the Pacific and Atlantic oceans up in the Northern Hemisphere (Wikipedia.com, 2013).

It is first oxidized to the chlorinated N-dealkylation products 2-chloro-4-ethyl-amino-6-amino-1,3,5-triazine (ETHYL) and 2-chloro-4-amino-6-isopropylamino-1,3,5-triazine (ISO). These products are then metabolized again via cytochrome p450 to the major metabolite, diaminochlorotriazine (DACT). These metabolites can then undergo glutathione S-transferase (GST) mediated GSH conjugation to form unreactive non-chlorinated metabolites, that can then be excreted

My essay will determine if a local chemical manufacturing plant is in compliance with OSHA Methylene Chloride, specializing in paint stripper for the DOD. Occupational health standard establishes requirements for employers to control occupational exposure to methylene chloride. Exposure may occur through inhalation, by absorption through the skin, or through contact with the skin. The standard requires that the employer establish a regulated area where exposure to airborne concentrations of methylene chloride exceeds or can be expected to exceed either the PEL or the STEL. Determine if the plant is using a soy-based stripper that do not contain methylene chloride, N-methylpyrrolidone, or other toxic solvents, when it comes to paint stripping

Police interrogation Cayde Lish interview after fatal stabbing Cayde Lish was interviewed for allegedly stabbing Jeremiah Paiz. Cayde Lish and Jeremiah had picked up an argument outside argument the Canyon Crest dining. It was during this argument Cayde Lish stabled Paiz 13 times in the back, once on the arm and punctured. It was from these wounds that Paiz died. Cayde Lish through interrogation by the police talked to the police a day after stabbing Paiz to dealth.

Introduction Medical instruments are routinely sterilized using autoclave or by gas sterilization using ethylene oxide. However this method of sterilization is insufficient to destroy pyrogen because it is thermostable as a matter of fact, pyrogens will be formed from the dead gram-negative bacteria that is killed during the sterilization process. The pyrogen substance that is produces is called endotoxin. Medical instruments (such as surgical instruments and in certain cases of implants) may contain endotoxin on the surface of the instruments, due to this the LAL test is performed (Mazzotti et al, 2007). Endotoxin is released into the environment during bacterial cell death or cell division occurs.

Ethylene dichloride is a chlorinated organic compound consisting of two singly bonded carbon atoms bonded to one chlorine atom on each carbon and is assigned the CAS registry number 107-06-2scifinder. Ethylene dichloride should not be confused with 1,2-dichloroethylene which contains a double bond between the two carbons. Although a stable compound at room temperature, it does slowly decompose in the presence of oxygen and UV light turning a darker colour, and at temperatures above 340 oC it begins to decomposes forming vinyl chloride & HCL Ullmann’s & http://www.cdc.gov/niosh/npg/npgd0271.html . Table 1 lists the basic physical and chemical properties on ethylene dichloride.

Lacking of clean freshwater has been one of the biggest challenges throughout the world1. Contaminated water is one of the biggest sources of potentially hazardous microorganisms that can cause severe health problem for humans either by direct consumption or through use in washing of food materials and food contact surfaces. According to the traditional water disinfection methods such as chlorination and ozonation have shown disadvantages related to the formation of potentially hazardous disinfection byproduct (DBPs) with carcinogenic and mutagenic potential2. Public health and environmental concerns would continue to drive efforts to decontaminate waters with more effective, lower-cost, and ecofriendly methods3. Therefore, research on more

Due to the unaccountability of the inconsistency in droplet size, many of the numbers may be varied because in one trial a huge droplet may count as one, but in another trial, I may have counted a small droplet as one, which causes results to possibly be

To begin, cocaine, also known benzoylmethylecgonine, is a strong stimulant extracted from the leaves of the coca plant, Erythroxylon coca (Medical-Dictionary). For two thousand years, Ancient Incas in the Andes chewed cocaine leaves to get their hearts racing and to speed their breathing to counter the effects of living in thin mountain air. This drug grows naturally in the forests that surround the Andes Mountains in South America (Drug Free World). In addition, cocaine causes a short-lived, intense high that is immediately followed by the opposite-intense depression, edginess and a craving for more of the drug (Drug Free World). “Street names” for cocaine include coke, flake, snow, blow, white, toot, base, basa, cola, and powder (Drug Free World).

2.5.7 Sulfur Sulfur content in biodiesel is limited to 15 ppm maximum by ASTM D6751.Therefore, it is important to know the original feedstock sulfur content since it can contribute to biodiesel sulfur content. The determination of sulfur in the feedstocks was done using ASTM D7039, Standard Test Method for Sulfur in Gasoline and Diesel Fuel by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry [10]. Sulfur analyzer manufactured by X-Ray Optical Systems Inc.is used to measure the amount of sulfur. The value of sulfur in Jatropha oil is 3.5 (ppm) in accordance with ASTM D7039. 2.5.8 Phosphorous, Calcium, and Magnesium: ASTM D6751 requires phosphorous in biodiesel be limited to 10 ppm (0.001 % mass maximum) and the combined amount

Disinfection Chemicals Introduction Water disinfection is removal, deactivation or elimination of pathogenic bacteria. Bacteria gets damaged or even deactivated, disabling reproduction. Disinfectants must not just eliminate bacteria. They must have residual effect. The disinfectant must not allow pathogenic bacteria to develop within the domestic plumbing after disinfection, causing water being decontaminated.

The pharmaceuticals industry relies heavily on using stoichiometric ratios in order to drive equilibria to completion (National Research Council, 2005, pp. 20-21). This results in large amounts of waste products per batch which, if not disposed of efficiently, can deposit in waterways and soil. This is especially detrimental when these waste products involve amines which can lead to algal bloom and eutrophication of waterways. In the case of Xylocaine®, excess diethylamine is used not only to drive equilibria but also to buffer the pH of the mixture as hydrochloric acid is produced.