Environmental trifluoroacetate

Article Abstract:

The trifluoroacetic acid (TFA) concentration in water and air samples collected in Switzerland, Israel and Germany in 1995 is in the range that has been predicted for 2010. The predicted concentration is based on the assumption of no environmental TFA and 30-40% oxidization to TFA of the 230,000 metric tons of 1,1,1,2-tetrafluoroethane expected to be produced in 2010. TFA is not absorbed or degraded in the soil as its level in spring water is similar to atmospheric levels. 1,1,1,2-tetrafluoroethane is being used as an alternative to chlorofluorocarbons for cooling purposes.

Israel, Germany, Switzerland, Environmental aspects, Fluorocarbons

---

Variations in atmospheric methane concentration during the Holocene epoch

Article Abstract:

Studies on the content of methane in the atmosphere indicate a change of about 15% in atmospheric methane during the Holocene period, which has implications on the low latitude fluctuations in hydrological cycles. The drying up of several lakes during the mid-Holocene indicates that the lowest levels of methane in the atmosphere occurred during this period. Formation of the northern wetlands during the Late Holocene caused the increase in methane concentration.

Analysis, Methane, Paleogeography, Holocene paleogeography

---

Warming debate highlights poor data

Article Abstract:

Arguments and discrepancies regarding adequacy of data regarding global warming has come to an end with scientists coming to an agreement that indeed data available on global warming is inadequate. Data collected shows that analysis of the tropospheric layer is consistent with a warming world but large uncertainties still exist in the data.

United States, Global warming, Records and correspondence

Similar abstracts:

• Abstracts: Bodies on the brink. Water vapor in the atmosphere of a transiting extrasolar planet. Comet on target for Jupiter
• Abstracts: Atmospheric carbon dioxide concentrations before 2.2 billion years ago. Meteoritic dust from the atmospheric disintegration of a large meteoroid
• Abstracts: Long-term trends in mule deer pregnancy and fetal rates in Colorado. Demographic patterns and harvest vulnerability of chronic wasting disease infected white-tailed deer in Wisconsin
• Abstracts: A perspective on surfaces and interfaces. Classifying the past
• Abstracts: Orographic control of storm zones on Mars. Evolution of water reservoirs on Mars from D/H ratios in the atmosphere and crust

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