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A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
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Anthropogenic monoterpenes aggravating ozone pollution.
Haichao Wang1,2,3, Xuefei Ma1, Zhaofeng Tan4
1State Key Joint Laboratory of Environmental Simulation and Pollution Control, State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
National Science Review
|September 21, 2022
Summary
Anthropogenic monoterpenes significantly boost local ozone production in eastern China, contributing 6-16% to total ozone. These findings highlight the need to consider monoterpenes in pollution control strategies.
Area of Science:
- Atmospheric Chemistry
- Air Quality Research
- Environmental Science
Background:
- Monoterpenes influence air quality and climate change via fine particle formation.
- Ozone (O3) is a key air pollutant with significant health and environmental impacts.
Purpose of the Study:
- To present field evidence of monoterpene oxidation's impact on local ozone production in eastern China.
- To investigate the source and contribution of monoterpenes to ozone formation in the region.
Main Methods:
- Field measurements of monoterpenes and related compounds (e.g., CO).
- Experimental determination of monoterpene oxidation rates using direct radical measurements.
- Correlation analysis to identify emission sources (biomass burning vs. biogenic).
Main Results:
- Monoterpene oxidation significantly enhanced local ozone production, contributing 4-18 parts per billion by volume (ppb) daily.
- Observed monoterpenes were primarily linked to biomass burning, indicated by high CO correlation.
- Monoterpenes accounted for 6%-16% of total ozone production, varying with monoterpene speciation.
Conclusions:
- Anthropogenic monoterpenes are a significant, previously overlooked contributor to ozone production in eastern China.
- The impact of anthropogenic monoterpenes on ozone may be substantial in other regions with massive emissions and high NO levels.
- Coordinated mitigation of ozone and particulate matter pollution must account for anthropogenic monoterpenes.
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