Trends in air pollutants emissions in the Qinghai-Tibet Plateau and its surrounding areas under different socioeconomic scenarios

Jiang，Ke1; Xing，Ran1; Luo，Zhihan1; Li，Jin1; Men，Yatai1; Shen，Huizhong4; Shen，Guofeng1,2,3; Tao，Shu1,2,4

2023-11-15

10.1016/j.scitotenv.2023.165745

Science of the Total Environment   Impact Factor & Quartile

0048-9697

1879-1026

The Qinghai-Tibetan Plateau (QTP) and its surrounding areas are undergoing rapid changes in socioeconomic conditions, activity sectors, and emission levels. These changes underscore the significance of conducting local environmental assessments in the future and generating air pollutant emission forecasts necessary for effective evaluation. Current pollutants emissions pathways exhibit regional limitation since their based historical inventory could not accurately reflect the emission characteristics in QTP. This study constructed a high spatial resolution (0.1° × 0.1°) atmospheric pollutant emissions dataset in the Qinghai-Tibet Plateau and its surrounding Areas (QTPA) based on updated emission inventory and various socioeconomic scenarios. We found that the pollutant emissions levels are distinct among different social development scenarios, with SSP3–7.0 demonstrating the highest magnitude of emissions. Regional and sectoral contributions exhibit substantial variations. Notably, solid fuel combustion originating from residential sectors in Northeast India and open fires in Myanmar are identified as high-density sources of PM emissions. Current pollutant emission patterns in the QTPA are more akin to SSP2–4.5, however, specific regions such as Qinghai and Tibet have exhibited more pronounced trends of emission reduction. The comparison with previous datasets reveals that the predicted pollutant emissions in this study are lower than Scenario Model Intercomparison Project (SMIP) dataset but higher than Asian-Pacific Integrated Model (AIM) dataset due to the revised inventory data and model variations, in which the latter might be the main obstacle to accurate emissions prediction.

Air pollutants Emission prediction Qinghai-Tibet Plateau Socioeconomic scenarios

SCI

English

Others

Ministry of Science and Technology of China[2019QZKK0605] ; National Natural Science Foundation[42077328]

Environmental Sciences & Ecology

Environmental Sciences

WOS:001050839700001

ELSEVIER

ENVIRONMENT/ECOLOGY

2-s2.0-85165956424

Scopus

1.Laboratory for Earth Surface Processes,College of Urban and Environmental Sciences,Peking University,Beijing,100871,China
2.Institute of Carbon Neutrality,Peking University,Beijing,100871,China
3.School of Ecology and Environment,Zhengzhou University,Zhengzhou,45001,China
4.School of Environmental Sciences and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Jiang，Ke,Xing，Ran,Luo，Zhihan,et al. Trends in air pollutants emissions in the Qinghai-Tibet Plateau and its surrounding areas under different socioeconomic scenarios[J]. Science of the Total Environment,2023,899.

Jiang，Ke.,Xing，Ran.,Luo，Zhihan.,Li，Jin.,Men，Yatai.,...&Tao，Shu.(2023).Trends in air pollutants emissions in the Qinghai-Tibet Plateau and its surrounding areas under different socioeconomic scenarios.Science of the Total Environment,899.

Jiang，Ke,et al."Trends in air pollutants emissions in the Qinghai-Tibet Plateau and its surrounding areas under different socioeconomic scenarios".Science of the Total Environment 899(2023).