Formaldehyde is a carcinogen and plays an essential role in photochemical reactions. Understanding its distribution and dynamics in the atmosphere significantly protects human and ecosystem health. In this paper, the temporal and spatial distribution of tropospheric formaldehyde column concentration and its influencing factors in Argentina from 2010 to 2021 are studied, and the future trend of formaldehyde is discussed. The results showed that the spatial distribution of formaldehyde gradually decreased from a high concentration in the northeast region to a low concentration in the southwest region. The concentration of formaldehyde column has fluctuated and increased in the last 12 years. The concentration of formaldehyde is highest in winter. Formaldehyde has a high correlation with NDVI (Normalized Difference Vegetation Index) and lift index but a low correlation with air pressure. The topographic factor plays an aggregation role in formaldehyde concentration during atmospheric transport. It is expected that formaldehyde in Argentina may continue to show a slight increase trend.

Xiaowen Niu, Tianzhen Ju, Bingnan Li, Cheng Huang, Jiaming Zhang, Shengtong Lei. Characteristics, future trends, and transport path analysis of atmospheric formaldehyde pollution: A case study of Argentina. Academic Journal of Environment & Earth Science (2024), Vol. 6, Issue 2: 43-53. https://doi.org/10.25236/AJEE.2024.060206.

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