Nighttime tropospheric chemistry: kinetics and product studies in the reaction of 4-alkyl- and 4-alkoxytoluenes with NO3 and gas phase

Article Abstract:

Researchers studied alkylbenzenes reactions with OH and with NO3. As alkylbenzenes are a key ingredient in gasoline, and chemical solvents, air pollution from this chemical is a concern. Reactions were studied at 760 Torr in a 480 L Teflon-coated 60 cm. diameter chamber. NO2 and O3 were put into the chamber to form N2O5. Then the hydrocarbon was added. From this reaction, methanol, ethanol, and formaldehyde were extracted, and their amounts recorded. The study concluded that reactions of NO3 radicals with aromatic hydrocarbons are slow relatively insignificant.

United States, Formaldehyde, Air pollution, Ethanolamines, Methanol

---

Modeling in situ bioremediation of TCE at Savannah River: effects of product toxicity and microbial interactions on TCE degradation

Article Abstract:

The use of in situ bioremediation techniques in the Savannah River improved the biodegradation and extraction of trichloroethylene (TCE) by 25% when compared to only vacuum extraction and air sparging techniques. The in situ demonstration worked by stimulating the methanotropic bacteria that were already present. The populations of this bacteria were somewhat affected by the presence of protozoa predators. Additionally, the methanotrophs were affected by their toxicity to TCE epoxides.

Bioremediation

---

Fate of volatile chlorinated organic compounds in a laboratory chamber with alfalfa plants

Article Abstract:

Biodegradation ranges for chlorinated aliphatic hydrocarbons trichloroethane (TCA) and trichloroethylene (TCE) were examined. The biodegradation levels were based on rhizosphere conditions of alfalfa plants grown in a laboratory setting without any control variable. TCA concentration levels remained almost constant, while TCE concentration changed length of the groundwater system.

Trichloroethane (1,1,1-trichloroethane), Trichloroethane

Similar abstracts:

• Abstracts: The chemistry of vicinal tricarbonyls and related systems. Functionalized fullerenes in water. The first ten years of their chemistry, biology, and nanoscience
• Abstracts: Change over time: responsibility and power in the midst of catastrophe. The vocal Memnon and solar thermal automata
• Abstracts: New Findings Point to an Abundance of Cellular Riches. Complexities in the treatment of autoimmune disease. The complexities of conception
• Abstracts: Integrated assessment of reduced emission impacts from a biomedical waste incinerator. Atmospheric characterization and modeling applications on particulate matter and acid gases

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.