Sediment Capping

Estuarine sediment can remain polluted by heavy metals and synthetic chemicals for decades after the contaminant source has stopped. A remediation measure used particularly in Japan is to dump sand on top of the contaminated material, in order to create a 0.5-1-m-thick cap. This provides clean sediment as a habitat for organisms and it also decreases the re-entrainment of the pollutants in the water column. If the overlying water is polluted, this new sand layer can quickly become contaminated by detritus in the water column. In the long term (years), the beneficial effect of capping is reduced by erosion of the sand cap and/or mixing across the sand cap.

Oplan Termites

Oplan Termites

You Might Start Missing Your Termites After Kickin'em Out. After All, They Have Been Your Roommates For Quite A While. Enraged With How The Termites Have Eaten Up Your Antique Furniture? Can't Wait To Have Them Exterminated Completely From The Face Of The Earth? Fret Not. We Will Tell You How To Get Rid Of Them From Your House At Least. If Not From The Face The Earth.

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