Presence of 1-hydroxypyrene conjugates in woody plant leaves and seasonal changes in their concentrations
Article Abstract:
Significant amounts of 1-hydroxypyrene (OHPy) conjugates in the leaves of woody plants were found in an investigation of the presence of polycyclic aromatic hydrocarbon conjugates in the leaves of roadside trees. Specifically, the existence of beta-O-glucoside and beta-O-glucuronide conjugates of OHPy was confirmed for the first time. In most plants studied, the amounts of glucuronide conjugates were greater than those of glucoside conjugates, though both were found at the highest concentrations in summer to autumn. The total amounts of the conjugates were greater than that of free OHPy in the leaves of most plants for all seasons.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Polycyclic aromatic hydrocarbon composition and potential sources for sediment samples from the Beaufort and Barents Seas
Article Abstract:
Distributions of polycyclic aromatic hydrocarbons (PAHs) from widely distributed Arctic marine sediments are interpreted to determine potential sources, examine their anthropogenic contribution and illuminate transport pathways. Results of principal components analysis reveal a distinction between natural and anthropogenic inputs and a direct linkage between anthropogenic emissions and Arctic contamination. An 'anthropogenic combustion' pattern for soils and sediments close to cities and industrial areas was observed, while different distributions are noted further away from industrial sites.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Biodegradation of three- and four-ring polycyclic aromatic hydrocarbons under aerobic and denitrifying conditions
Article Abstract:
Three pseudomonad strains were used to investigate the degradation of three polycyclic aromatic hydrocarbon compounds under strict anaerobic, denitrifying conditions. Tests on the degradation of anthracene, phenanthrene and pyrene showed that the rates of anerobic degradation proceeded slower than in aerobic conditions and further added evidence to the theory that denitrification is an important step in the degradation of aromatic hydrocarbons.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Decomposition of hydroxybenzoic and humic acids in water by ultrasonic irradiation. Evaluation of a log-normal distribution first-order kinetic model for copper(II)-humic acid complex dissociation
- Abstracts: Emergence of the supply network in Finnish industry: experiment in theoretical reconstruction. Object-oriented design and implementation of a web-enabled beer game for illustrating the bullwhip effect in supply chains
- Abstracts: Thermodynamic behavior of metal chlorides and sulfates under the conditions of incineration furnaces. Behavior of S(IV) and formaldehyde in a chemically heterogeneous cloud
- Abstracts: Thermodynamic behavior of metal chlorides and sulfates under the conditions of incineration furnaces. part 2 The C-S-H solid-solution system
- Abstracts: Evidence of estrogen- and TCDD-like activities in crude and fractionated extracts of PM10 air particulate material using in vitro gene expression assays