Surface ozone trends at El Arenosillo observatory from a new perspective

Adame, José Antonio; Gutiérrez-Álvarez, I.; Cristofanelli, Paolo; Notario, Alberto; Bogeat, Jose A.; Bolı́var, J.P.; Yela, Margarita

doi:10.1016/j.envres.2022.113887

Cited by 4 publications

(4 citation statements)

References 41 publications

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“…Abbreviations: 95% CI, 95% of the confidence interval; aOR, adjusted odds ratio that are slightly cloudy and rainy. It affects the physicalchemical processes of O 3 formation, which is why O 3 continues to be generated in the cold months, with production peaks on specific days when the temperature and solar radiation are higher [45].…”

Section: Or (95% Ci) P-value Q-valuementioning

confidence: 99%

Neighborhood environmental factors linked to hospitalizations of older people for viral lower respiratory tract infections in Spain: a case-crossover study

et al. 2022

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Background Lower respiratory tract viral infection (LRTI) is a significant cause of morbidity-mortality in older people worldwide. We analyzed the association between short-term exposure to environmental factors (climatic factors and outdoor air pollution) and hospital admissions with a viral LRTI diagnosis in older adults. Methods We conducted a bidirectional case-crossover study in 6367 patients over 65 years of age with viral LRTI and residential zip code in the Spanish Minimum Basic Data Set. Spain’s State Meteorological Agency was the source of environmental data. Associations were assessed using conditional logistic regression. P-values were corrected for false discovery rate (q-values). Results Almost all were hospital emergency admissions (98.13%), 18.64% were admitted to the intensive care unit (ICU), and 7.44% died. The most frequent clinical discharge diagnosis was influenza (90.25%). LRTI hospital admissions were more frequent when there were lower values of temperature and O3 and higher values of relative humidity and NO2. The regression analysis adjusted by temperatures and relative humidity showed higher concentrations at the hospital admission for NO2 [compared to the lag time of 1-week (q-value< 0.001) and 2-weeks (q-value< 0.001)] and O3 [compared to the lag time of 3-days (q-value< 0.001), 1-week (q-value< 0.001), and 2-weeks (q-value< 0.001)] were related to a higher odds of hospital admissions due to viral LRTI. Moreover, higher concentrations of PM10 at the lag time of 1-week (q-value = 0.023) and 2-weeks (q-value = 0.002), and CO at the lag time of 3-days (q-value = 0.023), 1-week (q-value< 0.001) and 2-weeks (q-value< 0.001)], compared to the day of hospitalization, were related to a higher chances of hospital admissions with viral LRTI. Conclusion Unfavorable environmental factors (low temperatures, high relative humidity, and high concentrations of NO2, O3, PM10, and CO) increased the odds of hospital admissions with viral LRTI among older people, indicating they are potentially vulnerable to these environmental factors. Graphical Abstract

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Section: Or (95% Ci) P-value Q-valuementioning

confidence: 99%

Neighborhood environmental factors linked to hospitalizations of older people for viral lower respiratory tract infections in Spain: a case-crossover study

et al. 2022

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“…Daily averages, and daily 95th and 5th percentiles, all of them obtained from hourly data, were used to analyse the O 3 trends for the whole period studied (2006–2021), following the methodology applied in [ 16 ]. Figure 3 provides trend estimations based on daily means and daily 5th and 95th percentiles.…”

Section: Resultsmentioning

confidence: 99%

“…As is well known, the O 3 trend can be the result of several factors, such as modifications in local (emissions, weather patterns) and synoptic scales (climate change, synoptic meteorological patterns). In this sense, the O 3 concentrations in the coastal area of the southwestern Iberian Peninsula [ 16 ] suggest that changes in the temperature and pressure during 2000–2021 point to a clear trend towards anticyclonic and warmer conditions, which, along with the reduction of precursor emissions, would contribute to the increasing trend of O 3 .…”

Section: Resultsmentioning

confidence: 99%

“…The possibility to work with this long time series ensured a large and statistically representative sample, hence allowing the possibility to determine long-term changes in the O 3 concentrations at this specific site. In this sense, O 3 trends during this period are studied based on daily averages and daily 95th and 5th percentiles [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

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16 Years (2006–2021) of Surface Ozone Measurements in Córdoba (Southern Spain): Trends and the Impact of the COVID-19 Lockdown

Hernández-Ceballos

Jiménez‐Solano

Torres-Fernández

2022

IJERPH

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Surface ozone concentrations (O3) during the period 2006–2021 are analysed at Córdoba city (southern Iberian Peninsula) in suburban and urban sampling sites. The aims are to present the levels and temporal variations, to explore trends and to quantity the variation in O3 concentrations in the context of the COVID-19 lockdown. The O3 means are higher in the suburban station (62 µg m−3 and 51.3 µg m−3), being the information level threshold only exceeded twice during this period. The daily evolution shows a maximum at about 17:00 UTC, whereas the minimum is reached at about 9:00 UTC, with higher levels in the suburban station. The seasonal evolution of this daily cycle also presents monthly differences in shape and intensity between stations. The trends are analysed by means of daily averages and daily 5th and 95th percentiles, and they show a similar increase in all of these parameters, with special emphasis on the daily P95 concentrations, with 0.27 µg m−3 year−1 and 0.24 µg m−3 year−1. Finally, the impact of the COVID-19 lockdown shows a decline in O3 concentrations over 10%.

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Surface ozone trends reversal for June and December in an Atlantic natural coastal environment

Adame,

Gutiérrez-Álvarez,

Notario

et al. 2024

Environ Sci Pollut Res

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Surface ozone trends at El Arenosillo observatory from a new perspective

Cited by 4 publications

References 41 publications

Neighborhood environmental factors linked to hospitalizations of older people for viral lower respiratory tract infections in Spain: a case-crossover study

Neighborhood environmental factors linked to hospitalizations of older people for viral lower respiratory tract infections in Spain: a case-crossover study

16 Years (2006–2021) of Surface Ozone Measurements in Córdoba (Southern Spain): Trends and the Impact of the COVID-19 Lockdown

Surface ozone trends reversal for June and December in an Atlantic natural coastal environment

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