Park Jiyeon, Kim Dohyung, Lee Kwangyul, Han Seunghee, Kim Hyunji, Williams Leah R, Joo Hung Soo, Park Kihong
National Leading Research Laboratory (Aerosol Technology and Monitoring Laboratory), School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-Gwagiro, Buk-gu, Gwangju, Republic of Korea.
Environmental Geochemistry Laboratory, School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-Gwagiro, Buk-gu, Gwangju, Republic of Korea.
Mar Pollut Bull. 2016 Sep 15;110(1):231-237. doi: 10.1016/j.marpolbul.2016.06.058. Epub 2016 Jun 23.
This study is to investigate the effect of biological seawater properties on sea spray aerosols (SSA). Concentrations of chlorophyll-a and bacteria were measured at coastal site in Korea in fall and summer seasons. Also, aerosol mass spectrometer (AMS) was used to determine chemical constituents (organics, sulfate, nitrate, ammonium, and chloride) of non-refractory submicrometer aerosols sprayed from seawaters using a bubble bursting system. The average concentration of chlorophyll-a in seawater in fall was 1.75±0.78μg/l, whereas it significantly increased to 5.11±2.16μg/l in summer. It was found that the fraction of organics in the submicrometer SSA was higher in summer (68%) than fall (49%), and that the organic fraction in the SSA increased as the concentration of chlorophyll-a increased in seawater, suggesting that the high phytoplankton biomass in seawater could lead to the enhancement of organic species in the SSA.
本研究旨在调查生物海水特性对海喷雾气溶胶（SSA）的影响。在韩国沿海地区于秋季和夏季测量了叶绿素-a和细菌的浓度。此外，使用气溶胶质谱仪（AMS）通过气泡破裂系统来确定从海水中喷出的非难熔亚微米气溶胶的化学成分（有机物、硫酸盐、硝酸盐、铵和氯化物）。秋季海水中叶绿素-a的平均浓度为1.75±0.78μg/l，而在夏季显著增加至5.11±2.16μg/l。研究发现，亚微米SSA中有机物的比例在夏季（68%）高于秋季（49%），并且随着海水中叶绿素-a浓度的增加，SSA中的有机成分也增加，这表明海水中高浮游植物生物量可能导致SSA中有机物种的增加。
