FRI-20.21-1-SITSTL-04
TRENDS IN TROPOSPHERIC OZONE LEVELS IN ATMOSPHERIC AIR
Abstract
This paper examines the trend in ground-level Ozone (O3) levels over a period of 10 years. Ozone is not emitted directly into the atmosphere. It is formed by the interaction of nitrogen oxides and volatile organic compounds under the influence of high temperatures and sunlight. It is one of the ingredients of atmospheric "smog". Ozone is a powerful and aggressive oxidizing agent that can have harmful effects on human health, ecosystems, people, and the environment. The conducted studies are based on officially available data from the National Air Quality Monitoring System of the Ministry of Environment and Water.
There is a tendency to reduce the number of registered exceedances of the threshold for informing the population of 180 mg/m3 and to maintain the number of registered exceedances of the short-term target norm of ozone protection for human health protection of 120 mg/m3.
There is a tendency to reduce the number of registered exceedances of the threshold for informing the population of 180 mg/m3 and to maintain the number of registered exceedances of the short-term target norm of ozone protection for human health protection of 120 mg/m3.
Keywords
Ground-level Ozone, Tendencies in O3 ground-level, Atmospheric smog
REFERENCES
- K.E. Percy, A.H. Legge, S.V. Krupa, Tropospheric ozone: A continuing threat to global forests? Developments in Environmental Science, 3, 2003, 85-118, ISSN 1474-8177, ISBN 9780080443171, https://doi.org/10.1016/S1474-8177(03)03004-3.
- KRUPA, S.V. global climate change: processes and products - an overview. Environ Monit Assess 46, 73-88 (1997). https://doi.org/10.1023/A:1005744103861.
- НАРЕДБА № 12 ОТ 15 юли 2010 г. за норми за серен диоксид, азотен диоксид, фини прахови частици, олово, бензен, въглероден оксид и озон в атмосферния въздух.
- ДИРЕКТИВА 2008/50/ЕО НА ЕВРОПЕЙСКИЯ ПАРЛАМЕНТ И НА СЪВЕТА от 21 май 2008 година относно качеството на атмосферния въздух и за по-чист въздух за Европа.
- Co-operative programme for monitoring and evaluation of the long-range transmission of air pollutants in Europe-EMEP/CCC Reports 1975-2024, URL: https://projects.nilu.no/ccc/reports.html
- Националната система за мониторинг на качеството на атмосферния въздух (НСМКАВ) на МОСВ. Изпълнителна агенция по околна среда. URL: https://eea.government.bg/.
- Администрация на Столична Община, становище за качеството на въздуха в София, URL: https://www.sofia.bg/components-environment-air.