Chemical Composition of Rainwater at Selected Sites on Upolu Island, Samoa  

作　　者：T. Imo P. Amosa F. Latu V. Vaurasi R. Ieremia T. Imo;P. Amosa;F. Latu;V. Vaurasi;R. Ieremia(Faculty of Science, National University of Samoa, Apia, Samoa;Department of Science, National University of Samoa, Apia, Samoa)

机构地区：[1]Faculty of Science, National University of Samoa, Apia, Samoa [2]Department of Science, National University of Samoa, Apia, Samoa

出　　处：《Atmospheric and Climate Sciences》2021年第3期458-468,共11页大气和气候科学（英文）

摘　　要：The study involved analysis of rainwater samples at four sites on Upolu Island, Samoa from November 2019 to April 2020. A total of 48 rainwater samples were analysed in order to determine the major cations (Na^{<span style="font-family:Verdana;">+</span>}<span style="font-family:Verdana;">, Mg</span>^{<span style="font-family:Verdana;">2+</span>}<span style="font-family:Verdana;">, Ca</span>^{<span style="font-family:Verdana;">2+</span>}<span style="font-family:Verdana;">, K</span>^{<span style="font-family:Verdana;">+</span>}<span style="font-family:Verdana;">) and anions (Cl</span>^{<span style="font-family:Verdana;"><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"=""><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#FFFFFF;">&#45;</span></span></span></span></span></span>}<span style="font-family:Verdana;">, <img src="Edit_846cdb89-0dcc-45e6-a692-949192768c16.bmp" alt="" />, <img src="Edit_482cb571-8668-4606-af63-0804396c042d.bmp" alt="" /> </span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;">) in wet precipitation from the four sites. The average pH of the rainwater was 6.89, perhaps due to neutralization. Only 50% of the rain samples had a pH above 5.6. This shows strong inputs of alkaline species to rainwater samples in some sites. The average pH of samples higher than 5.6 is due to high loadings of sodium ions. The rainwater samples are dominated by Na</span>^{<span style="font-family:Verdana;">+</span>}<span style="font-family:Verdana;">, Ca</span><The study involved analysis of rainwater samples at four sites on Upolu Island, Samoa from November 2019 to April 2020. A total of 48 rainwater samples were analysed in order to determine the major cations (Na^{<span style="font-family:Verdana;">+</span>}<span style="font-family:Verdana;">, Mg</span>^{<span style="font-family:Verdana;">2+</span>}<span style="font-family:Verdana;">, Ca</span>^{<span style="font-family:Verdana;">2+</span>}<span style="font-family:Verdana;">, K</span>^{<span style="font-family:Verdana;">+</span>}<span style="font-family:Verdana;">) and anions (Cl</span>^{<span style="font-family:Verdana;"><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"=""><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#FFFFFF;">&#45;</span></span></span></span></span></span>}<span style="font-family:Verdana;">, <img src="Edit_846cdb89-0dcc-45e6-a692-949192768c16.bmp" alt="" />, <img src="Edit_482cb571-8668-4606-af63-0804396c042d.bmp" alt="" /> </span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;">) in wet precipitation from the four sites. The average pH of the rainwater was 6.89, perhaps due to neutralization. Only 50% of the rain samples had a pH above 5.6. This shows strong inputs of alkaline species to rainwater samples in some sites. The average pH of samples higher than 5.6 is due to high loadings of sodium ions. The rainwater samples are dominated by Na</span>^{<span style="font-family:Verdana;">+</span>}<span style="font-family:Verdana;">, Ca</span><

关 键 词：Atmosphere POLLUTANTS Sources Concentration ANIONS CATIONS SAMOA 

分 类 号：O17[理学—数学]