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Añadido recurso Impact of the COVID-19 lockdown on air quality and resulting public health benefits in the Mexico City metropolitan area a Impact of the COVID-19 lockdown on air quality and resulting public health benefits in the Mexico City metropolitan area
f | 1 | { | f | 1 | { |
2 | "author": "IY Hern\u00e1ndez-Paniagua, SI Valdez, V Almanza, C | 2 | "author": "IY Hern\u00e1ndez-Paniagua, SI Valdez, V Almanza, C | ||
3 | Rivera-C\u00e1rdenas, ...", | 3 | Rivera-C\u00e1rdenas, ...", | ||
4 | "author_email": null, | 4 | "author_email": null, | ||
5 | "creator_user_id": "a3da3ec9-3fd4-47a4-8d04-0a90b09614e0", | 5 | "creator_user_id": "a3da3ec9-3fd4-47a4-8d04-0a90b09614e0", | ||
6 | "extras": [ | 6 | "extras": [ | ||
7 | { | 7 | { | ||
8 | "key": "Publicaci\u00f3n", | 8 | "key": "Publicaci\u00f3n", | ||
9 | "value": "Revista" | 9 | "value": "Revista" | ||
10 | }, | 10 | }, | ||
11 | { | 11 | { | ||
12 | "key": "Tipo", | 12 | "key": "Tipo", | ||
13 | "value": "Publicaci\u00f3n" | 13 | "value": "Publicaci\u00f3n" | ||
14 | } | 14 | } | ||
15 | ], | 15 | ], | ||
16 | "groups": [ | 16 | "groups": [ | ||
17 | { | 17 | { | ||
18 | "description": "Este grupo integra las publicaciones | 18 | "description": "Este grupo integra las publicaciones | ||
19 | acad\u00e9micas derivadas de los proyectos de investigaci\u00f3n del | 19 | acad\u00e9micas derivadas de los proyectos de investigaci\u00f3n del | ||
20 | Observatorio Metropolitano CentroGeo. Incluye art\u00edculos | 20 | Observatorio Metropolitano CentroGeo. Incluye art\u00edculos | ||
21 | presentados en congresos nacionales e internacionales, manuscritos en | 21 | presentados en congresos nacionales e internacionales, manuscritos en | ||
22 | formato preprint, cap\u00edtulos de libro y trabajos publicados en | 22 | formato preprint, cap\u00edtulos de libro y trabajos publicados en | ||
23 | revistas cient\u00edficas especializadas. Estos materiales reflejan la | 23 | revistas cient\u00edficas especializadas. Estos materiales reflejan la | ||
24 | labor de investigaci\u00f3n, desarrollo metodol\u00f3gico y | 24 | labor de investigaci\u00f3n, desarrollo metodol\u00f3gico y | ||
25 | an\u00e1lisis territorial del observatorio, contribuyendo al avance | 25 | an\u00e1lisis territorial del observatorio, contribuyendo al avance | ||
26 | del conocimiento en temas urbanos, metropolitanos y geoespaciales.", | 26 | del conocimiento en temas urbanos, metropolitanos y geoespaciales.", | ||
27 | "display_name": "Publicaciones", | 27 | "display_name": "Publicaciones", | ||
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30 | "name": "publicaciones", | 30 | "name": "publicaciones", | ||
31 | "title": "Publicaciones" | 31 | "title": "Publicaciones" | ||
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n | 41 | "metadata_modified": "2025-10-11T01:23:43.696029", | n | 41 | "metadata_modified": "2025-10-11T01:23:44.189882", |
42 | "name": | 42 | "name": | ||
43 | on-air-quality-and-resulting-public-health-benefits-in--0e4e41d72585", | 43 | on-air-quality-and-resulting-public-health-benefits-in--0e4e41d72585", | ||
44 | "notes": "Meteorology and long-term trends in air pollutant | 44 | "notes": "Meteorology and long-term trends in air pollutant | ||
45 | concentrations may obscure the results from short-term policies | 45 | concentrations may obscure the results from short-term policies | ||
46 | implemented to improve air quality. This study presents changes in CO, | 46 | implemented to improve air quality. This study presents changes in CO, | ||
47 | NO 2 , O 3 , SO 2 , PM 10 , and PM 2.5 based on their anomalies during | 47 | NO 2 , O 3 , SO 2 , PM 10 , and PM 2.5 based on their anomalies during | ||
48 | the COVID-19 partial (Phase 2) and total (Phase 3) lockdowns in Mexico | 48 | the COVID-19 partial (Phase 2) and total (Phase 3) lockdowns in Mexico | ||
49 | City (MCMA). To minimise the impact of the air pollutant long-term | 49 | City (MCMA). To minimise the impact of the air pollutant long-term | ||
50 | trends, pollutant anomalies were calculated using as baseline | 50 | trends, pollutant anomalies were calculated using as baseline | ||
51 | truncated Fourier series, fitted with data from 2016 to 2019, and then | 51 | truncated Fourier series, fitted with data from 2016 to 2019, and then | ||
52 | compared with those from the lockdown. Additionally, days with | 52 | compared with those from the lockdown. Additionally, days with | ||
53 | stagnant conditions and heavy rain were excluded to reduce the impact | 53 | stagnant conditions and heavy rain were excluded to reduce the impact | ||
54 | of extreme weather changes. Satellite observations for NO 2 and CO | 54 | of extreme weather changes. Satellite observations for NO 2 and CO | ||
55 | were used to contrast the ground-based derived results. During the | 55 | were used to contrast the ground-based derived results. During the | ||
56 | lockdown Phase 2, only NO 2 exhibited significant decreases ( p | 56 | lockdown Phase 2, only NO 2 exhibited significant decreases ( p | ||
57 | < 0.05) of between 10 and 23% due to reductions in motor | 57 | < 0.05) of between 10 and 23% due to reductions in motor | ||
58 | vehicle emissions. By contrast, O 3 increased ( p < 0.05) | 58 | vehicle emissions. By contrast, O 3 increased ( p < 0.05) | ||
59 | between 16 and 40% at the same sites where NO 2 decreased. During | 59 | between 16 and 40% at the same sites where NO 2 decreased. During | ||
60 | Phase 3, significant decreases ( p < 0.05) were observed for NO | 60 | Phase 3, significant decreases ( p < 0.05) were observed for NO | ||
61 | 2 (43%), PM 10 (20%), and PM 2.5 (32%) in response to the total | 61 | 2 (43%), PM 10 (20%), and PM 2.5 (32%) in response to the total | ||
62 | lockdown. Although O 3 concentrations were lower in Phase 3 than | 62 | lockdown. Although O 3 concentrations were lower in Phase 3 than | ||
63 | during Phase 2, those did not decrease ( p < 0.05) from the | 63 | during Phase 2, those did not decrease ( p < 0.05) from the | ||
64 | baseline at any site despite the total lockdown. SO 2 decreased only | 64 | baseline at any site despite the total lockdown. SO 2 decreased only | ||
65 | during Phase 3 in a near-road environment. Satellite observations | 65 | during Phase 3 in a near-road environment. Satellite observations | ||
66 | confirmed that NO 2 decreased and CO stabilised during the total | 66 | confirmed that NO 2 decreased and CO stabilised during the total | ||
67 | lockdown. Air pollutant changes during the lockdown could be | 67 | lockdown. Air pollutant changes during the lockdown could be | ||
68 | overestimated between 2 and 10-fold without accounting for the | 68 | overestimated between 2 and 10-fold without accounting for the | ||
69 | influences of meteorology and long-term trends in pollutant | 69 | influences of meteorology and long-term trends in pollutant | ||
70 | concentrations. Air quality improved significantly during the lockdown | 70 | concentrations. Air quality improved significantly during the lockdown | ||
71 | driven by reduced NO 2 and PM 2.5 emissions despite increases in O 3 , | 71 | driven by reduced NO 2 and PM 2.5 emissions despite increases in O 3 , | ||
72 | resulting in health benefits for the MCMA population. A health | 72 | resulting in health benefits for the MCMA population. A health | ||
73 | assessment conducted suggested that around 588 deaths related to air | 73 | assessment conducted suggested that around 588 deaths related to air | ||
74 | pollution exposure were averted during the lockdown. Our results show | 74 | pollution exposure were averted during the lockdown. Our results show | ||
75 | that to reduce O 3 within the MCMA, policies must focus on reducing | 75 | that to reduce O 3 within the MCMA, policies must focus on reducing | ||
76 | VOCs emissions from non-mobile sources. The measures implemented | 76 | VOCs emissions from non-mobile sources. The measures implemented | ||
77 | during the COVID-19 lockdowns provide valuable information to reduce | 77 | during the COVID-19 lockdowns provide valuable information to reduce | ||
78 | air pollution through a range of abatement strategies for emissions | 78 | air pollution through a range of abatement strategies for emissions | ||
79 | other than from motor vehicles.", | 79 | other than from motor vehicles.", | ||
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105 | "description": "Meteorology and long-term trends in air | ||||
106 | pollutant concentrations may obscure the results from short-term | ||||
107 | policies implemented to improve air quality. This study presents | ||||
108 | changes in CO, NO 2 , O 3 , SO 2 , PM 10 , and PM 2.5 based on their | ||||
109 | anomalies during the COVID-19 partial (Phase 2) and total (Phase 3) | ||||
110 | lockdowns in Mexico City (MCMA). To minimise the impact of the air | ||||
111 | pollutant long-term trends, pollutant anomalies were calculated using | ||||
112 | as baseline truncated Fourier series, fitted with data from 2016 to | ||||
113 | 2019, and then compared with those from the lockdown. Additionally, | ||||
114 | days with stagnant conditions and heavy rain were excluded to reduce | ||||
115 | the impact of extreme weather changes. Satellite observations for NO 2 | ||||
116 | and CO were used to contrast the ground-based derived results. During | ||||
117 | the lockdown Phase 2, only NO 2 exhibited significant decreases ( p | ||||
118 | < 0.05) of between 10 and 23% due to reductions in motor | ||||
119 | vehicle emissions. By contrast, O 3 increased ( p < 0.05) | ||||
120 | between 16 and 40% at the same sites where NO 2 decreased. During | ||||
121 | Phase 3, significant decreases ( p < 0.05) were observed for NO | ||||
122 | 2 (43%), PM 10 (20%), and PM 2.5 (32%) in response to the total | ||||
123 | lockdown. Although O 3 concentrations were lower in Phase 3 than | ||||
124 | during Phase 2, those did not decrease ( p < 0.05) from the | ||||
125 | baseline at any site despite the total lockdown. SO 2 decreased only | ||||
126 | during Phase 3 in a near-road environment. Satellite observations | ||||
127 | confirmed that NO 2 decreased and CO stabilised during the total | ||||
128 | lockdown. Air pollutant changes during the lockdown could be | ||||
129 | overestimated between 2 and 10-fold without accounting for the | ||||
130 | influences of meteorology and long-term trends in pollutant | ||||
131 | concentrations. Air quality improved significantly during the lockdown | ||||
132 | driven by reduced NO 2 and PM 2.5 emissions despite increases in O 3 , | ||||
133 | resulting in health benefits for the MCMA population. A health | ||||
134 | assessment conducted suggested that around 588 deaths related to air | ||||
135 | pollution exposure were averted during the lockdown. Our results show | ||||
136 | that to reduce O 3 within the MCMA, policies must focus on reducing | ||||
137 | VOCs emissions from non-mobile sources. The measures implemented | ||||
138 | during the COVID-19 lockdowns provide valuable information to reduce | ||||
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201 | "title": "Impact of the COVID-19 lockdown on air quality and | 261 | "title": "Impact of the COVID-19 lockdown on air quality and | ||
202 | resulting public health benefits in the Mexico City metropolitan | 262 | resulting public health benefits in the Mexico City metropolitan | ||
203 | area", | 263 | area", | ||
204 | "type": "dataset", | 264 | "type": "dataset", | ||
205 | "url": "https://doi.org/10.3389/fpubh.2021.642630", | 265 | "url": "https://doi.org/10.3389/fpubh.2021.642630", | ||
206 | "version": null | 266 | "version": null | ||
207 | } | 267 | } |