COVID-19 Kontrol Önlemleri Hava Kalitesi Parametrelerini Etkiledi mi? 35 Ülkede Hava Kirleticileri Değerlendirmesi

Abstract

Amaç: Çalışmada, COVID-19 salgını nedeniyle dünya çapında hükümetler tarafından oluşturulan geçici insan hareketliliği kısıtlamalarının hava kirleticileri değerleri üzerindeki etkilerini değerlendirmek amaçlanmıştır.

Materyal ve Metot: Çalışma ekolojik tipte tasarlanmıştır. 2019 ve 2020 Ocak-Mayıs tarihleri ​​arasında “Hava Kalitesi Açık Veri Platformu” web sitesinde bulunan 35 ülke için dört hava kirletici (CO, NO2, O3, SO2) ölçümleri çalışmanın verileri oluşturmaktadır.

Bulgular: Tüm ülkeler için medyan NO2 seviyeleri 2019'a göre 1-3,6 µg/m³ arasında azalmıştır. Azalma her ay için istatistiksel olarak anlamlı olarak bulunmuştur (Ocak, p=0,024; Şubat, p=0,001; Mart, Nisan ve Mayıs, p<0,001). Ayrıca, 35 ülkenin medyan O3 seviyelerinin 2020 Nisan ayının 2019 Nisan ayına göre değişimi değerlendirildiğinde istatistiksel olarak anlamlı bir artış gözlenmiştir (medyan fark: 1,80 µg/m³; p=0,017).

Sonuç: Mevcut bulgularımız ışığında, insan faaliyetlerinin hava kalitesi üzerinde önemli bir etkiye sahip olduğu sonucuna varılabilir. İleride yapılacak çalışmalarda ülkelerin hava kirletici seviyeleri meteorolojik koşulları dikkate alınarak daha detaylı değerlendirilebilir. 

Keywords

• Nitrik Oksit
• COVID-19
• Karbonmonoksit
• Kükürtdioksit
• Ozon

Have Quarantine Measures Affected the Air Quality Parameters? Condition Assessment in 35 Countries

Abstract

Objective: This study was conducted to assess the effects of the temporary human mobility restrictions established worldwide by governments due to the COVID-19 pandemic on criteria air pollutants.

Materials and Methods: Our study is designed in an ecological type measurements of four air pollutants (CO, NO2, O3, SO2) for 35 countries collected between January-May in 2019 and 2020 and available in the Air “Quality Open Data Platform” website were included.

Results: Median NO2 levels for all countries decreased between 1-3.6 µg/m³ compared to 2019, and this decrease was statistically significant in each month (January, p=0.024; February, p=0.001; March, April and May, p<0.001). Furthermore, a statistically significant increase was observed in median O3 levels for all 35 countries between April 2020 and April 2019 (median difference: 1.80 µg/m³; p=0,017).

Conclusion: Based on the findings reported here, it can be concluded that human activities have a significant influence on air quality. In future studies, air pollutants levels of countries may be evaluated in more detail considering their meteorological conditions. 

Keywords

• Carbon Monoxide
• COVID-19
• Nitric Oxide
• Sulphur Dioxide
• Ozone

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