Are there other persistent organic pollutants? A challenge for environmental chemists
… However, the log K ow value will be much lower (3.63) and dependent upon the pH and the
estimated log BCF value of 0.50 (BCFWIN ionic compounds) would not meet the BCF criteria…
estimated log BCF value of 0.50 (BCFWIN ionic compounds) would not meet the BCF criteria…
[BOOK][B] Handbook of environmental fate and exposure data: for organic chemicals, volume III pesticides
PH Howard - 2017 - taylorfrancis.com
… in soil at 15 oc of 9.9 days at pH 6.34 and 7.0, and 23 days at pH 7.2. Hydrolysis half-lives
are … high pH (pH 8.5) exists; reported half-lives in ground water under anaerobic conditions at …
are … high pH (pH 8.5) exists; reported half-lives in ground water under anaerobic conditions at …
Atom/fragment contribution method for estimating octanol–water partition coefficients
WM Meylan, PH Howard - Journal of pharmaceutical sciences, 1995 - Wiley Online Library
… that vary with pH. Harmony is a good example; it has measured log P values of 0.52 (pH 5)
and -1.57 (pH 7) and a pK, of 4.0.30 Using the measured log P of 0.52 at pH 5, correction for …
and -1.57 (pH 7) and a pK, of 4.0.30 Using the measured log P of 0.52 at pH 5, correction for …
[BOOK][B] Handbook of environmental degradation rates
PH Howard - 2017 - books.google.com
… The half-lives estimated using these data range from 3.8 years at pH 9 to 6.6 years at pH
7. Reduction: No data available; not expected to be significant under normal environmental …
7. Reduction: No data available; not expected to be significant under normal environmental …
[BOOK][B] Handbook of physical properties of organic chemicals
PH Howard - 1996 - books.google.com
If your work requires that you understand environmentally important properties of chemicals,
then this databook will make your job easier. By providing you with easily accessed …
then this databook will make your job easier. By providing you with easily accessed …
Enhancing agricultural landscapes to increase crop pest reduction by vertebrates
A key challenge of the coming decades is increasing agricultural productivity while maintaining
environments that optimize ecosystem service provisioning. Crop pests are a constant …
environments that optimize ecosystem service provisioning. Crop pests are a constant …
Workgroup report: review of fish bioaccumulation databases used to identify persistent, bioaccumulative, toxic substances
…, J Arnot, O Mekenyan, PH Howard… - Environmental …, 2007 - ehp.niehs.nih.gov
… ), temperature, tissue analyzed, water type, pH, and source reference. Data are available for
… These data have not been assessed for quality (Howard PH, personal communication). The …
… These data have not been assessed for quality (Howard PH, personal communication). The …
Improved method for estimating bioconcentration/bioaccumulation factor from octanol/water partition coefficient
WM Meylan, PH Howard, RS Boethling… - … and Chemistry: An …, 1999 - Wiley Online Library
… from a compound's and the medium pH using the Henderson-Hasselbalch equation [51], …
However, as with % lipid and other potentially useful data, pH is often not reported and was …
However, as with % lipid and other potentially useful data, pH is often not reported and was …
Identifying new persistent and bioaccumulative organics among chemicals in commerce
The goal of this study was to identify commercial chemicals that might be persistent and
bioaccumulative (P&B) and that were not being considered in current Great Lakes, North …
bioaccumulative (P&B) and that were not being considered in current Great Lakes, North …
Corporate cooptation of organic and fair trade standards
Recent years have seen a substantial increase in alternative agrifood initiatives that attempt
to use the market to curtail the negative social and environmental effects of production and …
to use the market to curtail the negative social and environmental effects of production and …