Rhizospere effects on microbial community structure and dissipation and toxicity of polycyclic aromatic hydrocarbons (PAHs) in spiked soil

Article Abstract:

Ryegrass and clover are grown in soil exposed to chrysene, dibenz(a,h)anthracene, and anthracene and the fungi arbuscular mycorrhizas to determine the effectiveness of the phytoremediation of polycyclic aromatic hydrocarbons. Soil measurements are graphed for toxicity with and without plants, and with and without the fungi, over a period of sixteen weeks.

Cash grains, not elsewhere classified, Other Grain Farming, Rye, Clover, Clovers (Legumes)

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Dissipation and distribution of herbicides in a fluventic hapludoll soil

Article Abstract:

A study of the dissipation and distribution behavior of atrazine and alachlor, two widely-used herbicides, in a fluvial hapludoll soil showed that the dissipation and distribution behavior is not correlated with the farming practice on the surface. The 15 dissipation curves for atrazine showed a first-order exponential decay rate constant of 0.02/d, while the 25 dissipation curves for alachlor showed a decay rate constant of 0.04/d.

Environmental aspects, Herbicides, Agricultural pollution

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Relationships between Structure and Binding Affinity of Humic Substances for Polycyclic Aromatic Molecular Descriptors

Article Abstract:

Researchers in Russia used fluorescence quenching to examine the binding affinities of pyrene, fluroanthene, and anthracene to 26 different humic materials.

Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Aromatic Hydrocarbons, Pollution, Chemical industry, Fluorescence spectroscopy

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