Observation of hydrogen peroxide concentrations in a Japanese red pine forest
Observation of hydrogen peroxide concentrations in a Japanese red pine forest
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DOI：
10.1007/s10874-008-9107-0
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发表时间：
2008-09
影响因子：
2
通讯作者：
Xuan Chen;M. Aoki;Shangxun Zhang;Jinhua Zhang;S. Nozoe;D. Komori;A. Takami;S. Hatakeyama
中科院分区：
文献类型：
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作者：
Xuan Chen;M. Aoki;Shangxun Zhang;Jinhua Zhang;S. Nozoe;D. Komori;A. Takami;S. Hatakeyama
为了研究过氧化氢（H2 O2）的浓度及其控制因素，我们在2000 - 2002年的8个测量期内对日本赤松林中H2 O2和其他气体（如二氧化硫、臭氧和NOx）的浓度以及气象因子（如空气温度、相对湿度和风向/风速）进行了监测。H2 O2浓度范围从低于0.01至1.64 ppb，在H2 O2浓度的日变化分析显示，中午附近的高浓度，和低浓度在上午和下午晚些时候。H2 O2浓度在初夏较高，此时O3浓度、温度和太阳辐射较高;秋季较低，此时O3浓度、温度和太阳辐射较低。我们建议，O3浓度影响生产的H2 O2在监测区域在研究期间，但高H2 O2浓度有时造成的污染空气从城市地区的运输。当SO2浓度增加时，三宅岛H2 O2浓度显著降低。在没有SO2影响的情况下，H2 O2浓度随O3浓度和温度的升高而升高。
In order to study the concentrations of hydrogen peroxide (H2O2) and the factors controlling its concentrations, we monitored concentrations of H2O2and other gases such as sulfur dioxide, ozone, and NOxas well as meteorological factors such as air temperature, relative humidity, and wind direction/speed during eight measurement periods from 2000 to 2002 in a Japanese red pine forest in Japan. The H2O2concentrations ranged from below 0.01 to 1.64 ppb, and analysis of the diurnal variation in H2O2concentration showed high concentrations around noon, and low concentrations in the morning and late afternoon. The H2O2concentrations were high in early summer, when O3concentration, temperature, and solar radiation were high, and were low in fall, when O3concentration, temperature, and solar radiation were low. We propose that O3concentration affects the production of H2O2in the monitored region during the period under study, but that high H2O2concentrations were sometimes caused by the transport of polluted air from urban regions. H2O2concentrations decreased remarkably when SO2concentrations increased by transported volcanic emission on Miyake Island. In the absence of the effects of SO2, H2O2concentrations increased with increasing O3concentration and temperature.