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Introduction to Soil Microbiology
Characterizes soil microflora from descriptive and functional viewpoints; considers the biological processes that take place in the soil and their importance to soil fertility, plant growth, and
Aging, bioavailability, and overestimation of risk from environmental pollutants
  • M. Alexander
  • Environmental Science, Engineering
  • 8 September 2000
As they persist, or age, in soil, organic compounds become progressively less available for uptake by organisms, for exerting toxic effects, and for biodegradation and bioremediation by
Selective Chemical Extractants To Predict Bioavailability of Soil-Aged Organic Chemicals
A study was conducted to determine the feasibility of devising a chemical assay to predict the bioavailability of organic compounds that become sequestered in soil. The recovery of atrazine and
How toxic are toxic chemicals in soil?
  • M. Alexander
  • Environmental Science, Medicine
    Environmental science & technology
  • 1 November 1995
Dinishing toxicity as chemicals age in soil is evident in a limited number of assessments, and findings suggest that the hazard and risk from toxic chemicals diminish as the compounds persist in soil.
Effect of aging of chemicals in soil on their biodegradability and extractability.
The data show that phenanthrene and 4-nitrophenol added to soil become increasingly more resistant with time to biodegradation and extraction.
Biodegradation and Bioremediation.
This paper presents a meta-modelling study of growth-linked Biodegradation of Metals and Inorganic Pollutants using Nonaqueous-Phase Liquids and Compounds with Low Water Solubility and its effects on Bioremediation Technologies.
Models for mineralization kinetics with the variables of substrate concentration and population density
It is concluded that much of the diversity in shapes of mineralization curves is a result of the interactions of substrate concentration and population density.
Relationship between Cell Surface Properties and Transport of Bacteria through Soil
It is suggested that more than one characteristic of bacterial cells determines whether the organisms are transported through soil with moving water.
Biodegradation of chemicals of environmental concern.
Type reactions are proposed for major categories of enzymatic transformation of synthetic chemicals in soils, natural waters, and sewage and some organic molecules are resistant to microbial attack, and explanations for the persistence of such compounds are suggested.