User profiles for P. H. Howard

Philip Howard

- Verified email at srcinc.com - Cited by 12343

Philip H. Howard

- Verified email at msu.edu - Cited by 3891

Are there other persistent organic pollutants? A challenge for environmental chemists

DCG Muir, PH Howard - Environmental science & technology, 2006 - ACS Publications
… 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…

[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 …

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 …

[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 …

[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 …

Enhancing agricultural landscapes to increase crop pest reduction by vertebrates

C Lindell, RA Eaton, PH Howard, SM Roels… - Agriculture, Ecosystems …, 2018 - Elsevier
A key challenge of the coming decades is increasing agricultural productivity while maintaining
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 …

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 …

Identifying new persistent and bioaccumulative organics among chemicals in commerce

PH Howard, DCG Muir - 2010 - ACS Publications
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 …

Corporate cooptation of organic and fair trade standards

D Jaffee, PH Howard - Agriculture and human values, 2010 - Springer
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 …