Observational study of ground-level ozone and climatic factors in Craiova, Romania, based on one-year high-resolution data DOI Creative Commons
Hasan Yıldızhan, Mihaela Tinca Udriștioiu, Tuğçe Pekdoğan

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 5, 2024

Abstract Air pollution is a multifaceted issue affecting people’s health, environment, and biodiversity. Gaining comprehension of the interactions between natural anthropocentric pollutant concentrations local climate challenging. This study aims to address following two questions: (1) What influential mechanism climatic anthropogenic factors on ground-level ozone (O 3 ) in an urban environment during different seasons? (2) Can weekend effect be observed medium-sized city like Craiova, under which conditions? In order answer these questions, with meteorological parameters (temperature, pressure, relative humidity) (particulate matter, carbon dioxide, volatile organic compounds, formaldehyde, nitrogen nitric oxide monoxide) evaluated based one-year dataset given by low-cost sensor provided National Environment Agency. Using statistical analysis programs, Python SPSS, good understanding correlations variables concentration obtained. The SPSS underscores significant impact three nine other pollutants level. A positive correlation noticed summer when sunlight intense photochemical reactions are elevated. relationship temperature strong positive, as confirmed Spearman’s rho coefficient ( r = 0.880). negative found humidity -0.590). Moreover, shows that particulate matter exhibit ≈ -0.542), indicating higher reduce levels. Volatile compounds show -0.156). dioxide -0.343), indicates elevated levels might also suppress concentrations. 0.060), highlights role production through reactions. However, -0.055) due its formation. Carbon monoxide has no statistically concentration. To observe differences weekdays weekends, T-Test was used. Even though were temperature, humidity, did not highlight mid-sized Craiova. Python, daily values calculated compared limit recommended World Health Organization (WHO) European Agency (EEA). WHO O exceeded for 13 times one year. offers comprehensive serving valuable reference decision-makers. It provides critical insights into seasonal dynamics levels, emphasizing formation complex various factors.

Language: Английский

Assessment of Air Pollution and Lagged Meteorological Effects in an Urban Residential Area of Kenitra City, Morocco DOI Creative Commons

Mustapha Zghaïd,

Abdelfettah Benchrif, Mounia Tahri

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(1), P. 96 - 96

Published: Jan. 16, 2025

Complex mixtures of air pollutants, including ozone (O3), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen (NO2), black (BC), and fine particulate matter (PM2.5), present significant health risks. To understand the factors influencing pollution levels their temporal variations, comprehensive high-resolution long-term data are essential. This study analyzed characteristics, lagged meteorological effects, patterns six pollutant concentrations over a one-year period at an urban residential site in Kenitra, Morocco. The results reveal pronounced seasonal diurnal variations levels, shaped by factors, emission sources, local geographic conditions. PM2.5, SO2, CO peaked during winter, while NO2 exhibited consistent peaks morning evening rush hours across all seasons, driven traffic emissions nocturnal accumulation. In contrast, O3 were highest summer afternoons due to photochemical reactions fueled strong UV radiation, winter lowest reduced sunlight. Lagged effects further highlighted complexity dynamics. Meteorological temperature, wind speed, humidity, pressure, significantly influenced with both immediate observed. Lag analyses revealed that PM2.5 BC responded humidity time, highlighting dynamics dispersion is sensitive temperature pressure changes, delayed impacts, formation was primarily reflecting complex processes. SO2 direction playing key role transport. These findings emphasize importance considering as well developing quality management strategies.

Language: Английский

Citations

0
Observational study of ground-level ozone and climatic factors in Craiova, Romania, based on one-year high-resolution data DOI Creative Commons
Hasan Yıldızhan, Mihaela Tinca Udriștioiu, Tuğçe Pekdoğan

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 5, 2024

Abstract Air pollution is a multifaceted issue affecting people’s health, environment, and biodiversity. Gaining comprehension of the interactions between natural anthropocentric pollutant concentrations local climate challenging. This study aims to address following two questions: (1) What influential mechanism climatic anthropogenic factors on ground-level ozone (O 3 ) in an urban environment during different seasons? (2) Can weekend effect be observed medium-sized city like Craiova, under which conditions? In order answer these questions, with meteorological parameters (temperature, pressure, relative humidity) (particulate matter, carbon dioxide, volatile organic compounds, formaldehyde, nitrogen nitric oxide monoxide) evaluated based one-year dataset given by low-cost sensor provided National Environment Agency. Using statistical analysis programs, Python SPSS, good understanding correlations variables concentration obtained. The SPSS underscores significant impact three nine other pollutants level. A positive correlation noticed summer when sunlight intense photochemical reactions are elevated. relationship temperature strong positive, as confirmed Spearman’s rho coefficient ( r = 0.880). negative found humidity -0.590). Moreover, shows that particulate matter exhibit ≈ -0.542), indicating higher reduce levels. Volatile compounds show -0.156). dioxide -0.343), indicates elevated levels might also suppress concentrations. 0.060), highlights role production through reactions. However, -0.055) due its formation. Carbon monoxide has no statistically concentration. To observe differences weekdays weekends, T-Test was used. Even though were temperature, humidity, did not highlight mid-sized Craiova. Python, daily values calculated compared limit recommended World Health Organization (WHO) European Agency (EEA). WHO O exceeded for 13 times one year. offers comprehensive serving valuable reference decision-makers. It provides critical insights into seasonal dynamics levels, emphasizing formation complex various factors.

Language: Английский

Citations

0