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Article

Increases in Biogenic Volatile Organic Compound Concentrations Observed after Rains at Six Forest Sites in Non-Summer Periods

by
Takafumi Miyama
1,*,
Tomoaki Morishita
2,
Yuji Kominami
1,
Hironori Noguchi
1,
Yukio Yasuda
1,
Natsuko Yoshifuji
1,
Michiaki Okano
1,
Katsumi Yamanoi
3,
Yasuko Mizoguchi
3,
Satoru Takanashi
4,
Kenzo Kitamura
5 and
Kazuho Matsumoto
6
1
Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan
2
Tohoku Research Center, Forestry and Forest Products Research Institute, Morioka 020-0123, Japan
3
Hokkaido Research Center, Forestry and Forest Products Research Institute, Sapporo 062-8516, Japan
4
Kansai Research Center, Forestry and Forest Products Research Institute, Kyoto 612-0855, Japan
5
Kyushu Research Center, Forestry and Forest Products Research Institute, Kumamoto 860-0862, Japan
6
Faculty of Agriculture, University of the Ryukyus, Nishihara 903-0213, Japan
*
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(12), 1381; https://doi.org/10.3390/atmos11121381
Submission received: 29 September 2020 / Revised: 16 December 2020 / Accepted: 17 December 2020 / Published: 21 December 2020
(This article belongs to the Special Issue Tropospheric Ozone Observations)
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Abstract

Since biogenic volatile organic compounds (BVOCs) are important precursors of ozone, the monitoring of the BVOC concentration distributions is needed. In general, forest BVOC concentrations increase in summer as well as in other seasons. This study aims to detect temporally sporadic increases in BVOC concentrations in the non-summer months and to analyze the occurring climatic conditions. Using a uniform sampling system and shared gas chromatography–mass spectrometry, the concentrations of isoprene and monoterpenes in six Japanese forests were observed approximately once a month for 3 years. Using the observed data, the relations between the BVOC concentration increases and meteorological factors were evaluated. Twenty instances of temporal increases in BVOC concentrations were observed. These mainly occurred in spring for isoprene and in autumn for monoterpenes. Most of the increases in the non-summer months were observed after a rainfall event, when the daily temperature range was large, suggesting that wind, rain, and a rapid diurnal temperature rise could be factors in the non-summer months. Thus, the network monitoring of BVOC concentrations might be effective for understanding the effects of factors other than temperature, and the mechanisms and frequency of the temporal increases, on the BVOC concentrations in various forests.
Keywords: ozone precursor; biogenic volatile organic compound (BVOC); isoprene; monoterpene; forest; ATD-GC–MS ozone precursor; biogenic volatile organic compound (BVOC); isoprene; monoterpene; forest; ATD-GC–MS

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MDPI and ACS Style

Miyama, T.; Morishita, T.; Kominami, Y.; Noguchi, H.; Yasuda, Y.; Yoshifuji, N.; Okano, M.; Yamanoi, K.; Mizoguchi, Y.; Takanashi, S.; et al. Increases in Biogenic Volatile Organic Compound Concentrations Observed after Rains at Six Forest Sites in Non-Summer Periods. Atmosphere 2020, 11, 1381. https://doi.org/10.3390/atmos11121381

AMA Style

Miyama T, Morishita T, Kominami Y, Noguchi H, Yasuda Y, Yoshifuji N, Okano M, Yamanoi K, Mizoguchi Y, Takanashi S, et al. Increases in Biogenic Volatile Organic Compound Concentrations Observed after Rains at Six Forest Sites in Non-Summer Periods. Atmosphere. 2020; 11(12):1381. https://doi.org/10.3390/atmos11121381

Chicago/Turabian Style

Miyama, Takafumi, Tomoaki Morishita, Yuji Kominami, Hironori Noguchi, Yukio Yasuda, Natsuko Yoshifuji, Michiaki Okano, Katsumi Yamanoi, Yasuko Mizoguchi, Satoru Takanashi, and et al. 2020. "Increases in Biogenic Volatile Organic Compound Concentrations Observed after Rains at Six Forest Sites in Non-Summer Periods" Atmosphere 11, no. 12: 1381. https://doi.org/10.3390/atmos11121381

APA Style

Miyama, T., Morishita, T., Kominami, Y., Noguchi, H., Yasuda, Y., Yoshifuji, N., Okano, M., Yamanoi, K., Mizoguchi, Y., Takanashi, S., Kitamura, K., & Matsumoto, K. (2020). Increases in Biogenic Volatile Organic Compound Concentrations Observed after Rains at Six Forest Sites in Non-Summer Periods. Atmosphere, 11(12), 1381. https://doi.org/10.3390/atmos11121381

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