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

Öz

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. 

Anahtar Kelimeler

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

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

Öz

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. 

Anahtar Kelimeler

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

Kaynakça

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