日本語AIでPubMedを検索
バラスト水条約施行後および施行前の船舶タンクのバラスト水に含まれる重金属の調査ペルシャ湾ブシェール港
Investigation of heavy metals in the ballast water of ship tanks after and before the implementation of the ballast water convention: Bushehr Port, Persian Gulf.
PMID: 32658717 DOI: 10.1016/j.marpolbul.2020.111378.
抄録
本研究では、ブシェール港に入港する船舶のバラスト水に含まれるNi, Cd, Pb, Cuなどの重金属量とpH, 温度, 全有機炭素(TOC)などの生理化学的要因を、バラスト水条約施行前後の2年間(寒季と暑季)に渡って測定した。バラスト水条約施行前後のNi, Cd, Pb, Cuの平均濃度は、46.55, 3.93, 5.36, 58.83、26.41, 2.12, 2.59, 23.54ppbであった。この結果から、条約実施後の重金属濃度は比較して低く、有意な差があることが明らかになった(p<.05)。このように、ペルシャ湾でバラスト水を交換しようとする船舶には、バラスト水の品質を継続的に監視し、ペルシャ湾内で汚染や汚染のない場所を見極める必要があると思われる。
In this study, the amount of heavy metals such as Ni, Cd, Pb and Cu and some physiochemical factors including pH, temperature and total organic carbon (TOC) in the ballast water of the ships entering the Bushehr Port were measured for two years (cold and hot seasons) before and after the ballast water convention was enforced. The mean concentrations of Ni, Cd, Pb and Cu, before and after implementation of the convention were 46.55, 3.93, 5.36, 58.83 and 26.41, 2.12, 2.59, 23.54 ppb. It became clear that the concentrations of heavy metals after the implementation of the convention was lower in comparison and there was a significant difference (p < .05). It seems that continuous monitoring of the quality of the ballast water and determination of locations free of pollution and contamination in the Persian Gulf are necessary for ships that intend to exchange their ballast water in this Gulf.
Copyright © 2020 Elsevier Ltd. All rights reserved.