scholarly journals The influence of the Tula, Hidalgo complex on the air quality of the Mexico City Metropolitan Area

Atmósfera ◽  
2014 ◽  
Vol 27 (2) ◽  
pp. 215-225 ◽  
Author(s):  
Jennifer Sandra García-Escalante ◽  
José Agustín García-Reynoso ◽  
Arón Jazcilevich-Diamant ◽  
Luis Gerardo Ruiz-Suárez
Keyword(s):  
Air Quality ◽  
Mexico City ◽  
Metropolitan Area

scholarly journals Experience from Integrated Air Quality Management in the Mexico City Metropolitan Area and Singapore

Atmosphere ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 512 ◽  
Author(s):  
Molina ◽  
Velasco ◽  
Retama ◽  
Zavala
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Quality Management ◽  
Mexico City ◽  
Metropolitan Area ◽  
Urban Areas ◽  
Lessons Learned ◽  
Atmospheric Pollutants ◽  
Asia Pacific ◽  
Air Quality Management

More than half of the world’s population now lives in cities as a result of unprecedented urbanization during the second half of the 20th century. The urban population is projected to increase to 68% by 2050, with most of the increase occurring in Asia and Africa. Population growth and increased energy consumption in urban areas lead to high levels of atmospheric pollutants that harm human health, cause regional haze, damage crops, contribute to climate change, and ultimately threaten the society’s sustainability. This article reviews the air quality and compares the policies implemented in the Mexico City Metropolitan Area (MCMA) and Singapore and offers insights into the complexity of managing air pollution to protect public health and the environment. While the differences in the governance, economics, and culture of the two cities greatly influence the decision-making process, both have made much progress in reducing concentrations of harmful pollutants by implementing comprehensive integrated air quality management programs. The experience and the lessons learned from the MCMA and Singapore can be valuable for other urban centers, especially in the fast-growing Asia-Pacific region confronting similar air pollution problems.

Impact of wildfires on the air quality of Mexico City, 1992–1999

2002 ◽  
Vol 117 (2) ◽  
pp. 243-253 ◽  
Author(s):  
A.H Bravo ◽  
E.R Sosa ◽  
A.P Sánchez ◽  
P.M Jaimes ◽  
R.M.I Saavedra
Keyword(s):  
Air Quality ◽  
Mexico City

scholarly journals Air quality analysis for a metropolitan area in Romania during the first half of 2021

2022 ◽  
Vol 354 ◽  
pp. 00066
Author(s):  
Clementina Sabina Moldovan ◽  
Liana-Simona Sbîrnă ◽  
Sebastian Sbîrnă
Keyword(s):  
European Union ◽  
Particulate Matter ◽  
Air Quality ◽  
Metropolitan Area ◽  
Quality Analysis ◽  
The European Union ◽  
Suspended Particulate ◽  
Air Quality Monitoring Stations ◽  
Matter Concentration

This paper aims to interpret and to use within a statistical analysis the concentration profiles of the main air pollutants – i.e., nitrogen oxides (NOx), sulfur dioxide (SO2), carbon monoxide (CO) and suspended particulate matter (PM10) – results recorded during the first half of 2021 by two air quality monitoring stations in Craiova, which is an important metropolitan area in Southern Romania. Another goal of the paper is finding the best numerical diffusion model to fit the recorded values for PM10, as this pollutant seems to be the major problem, because its daily average is often higher than the European Union threshold, meaning that imperative measures have to be taken for reducing particulate matter concentration in Craiova (like in other major Romanian metropolitan areas), in order for Romania to get the exoneration regarding air pollution from the European Union and, of course, for its citizens to improve the quality of their lives.

scholarly journals KTP—Collectively Improving Air Quality in Krakow: A New Air Quality Plan for the Małopolska Region

2021 ◽  
pp. 67-78
Author(s):  
Agnieszka Włodarczyk-Gębik ◽  
Aleksandra Gabriel ◽  
Maria Dubis ◽  
Monika Machowska
Keyword(s):  
Quality Of Life ◽  
Air Pollution ◽  
Air Quality ◽  
Metropolitan Area ◽  
Decision Makers ◽  
Improve Quality ◽  
New Policies ◽  
User Centered

AbstractKTP’s project relates to the challenge of air pollution and the need to improve quality of life in Kraków and the Kraków Metropolitan Area. The aim is to improve the quality of the air by motivating citizens to change their ecological attitudes, transport and heating habits and support decision makers with relevant tools and instruments for better co-creation of local new policies with a user-centered approach.

scholarly journals Longitudinal Study of Microbial Diversity and Seasonality in the Mexico City Metropolitan Area Water Supply System

2005 ◽  
Vol 71 (9) ◽  
pp. 5129-5137 ◽  
Author(s):  
Marisa Mazari-Hiriart ◽  
Yolanda López-Vidal ◽  
Sergio Ponce-de-León ◽  
Juan José Calva ◽  
Francisco Rojo-Callejas ◽  
...  
Keyword(s):  
Longitudinal Study ◽  
Mexico City ◽  
Metropolitan Area ◽  
Distribution System ◽  
Bacterial Species ◽  
Fecal Coliforms ◽  
Chlorine Disinfection ◽  
Groundwater Supply ◽  
Dry Seasons

ABSTRACT In the Mexico City metropolitan area (MCMA), 70% of the water for 18 million inhabitants is derived from the Basin of Mexico regional aquifer. To provide an overview of the quality of the groundwater, a longitudinal study was conducted, in which 30 sites were randomly selected from 1,575 registered extraction wells. Samples were taken before and after chlorine disinfection during both the rainy and dry seasons (2000-2001). Microbiological parameters (total coliforms, fecal coliforms, streptococci, and Vibrio spp.), the presence of Helicobacter pylori, and physicochemical parameters, including the amount of trihalomethanes (THMs), were determined. Although microorganisms and inorganic and organic compounds were evident, they did not exceed current permissible limits. Chlorine levels were low, and the bacterial counts were not affected by chlorine disinfection. Eighty-four bacterial species from nine genera normally associated with fecal contamination were identified in water samples. H. pylori was detected in at least 10% of the studied samples. About 40% of the samples surpassed the THM concentration allowed by Mexican and U.S. regulations, with levels of chloroform being high. The quality of the water distributed to the MCMA varied between the rainy and dry seasons, with higher levels of pH, nitrates, chloroform, bromodichloromethane, total organic carbon, and fecal streptococci during the dry season. This study showed that the groundwater distribution system is susceptible to contamination and that there is a need for a strict, year-round disinfection strategy to ensure adequate drinking-water quality. This situation in one of the world's megacities may reflect what is happening in large urban centers in developing countries which rely on a groundwater supply.

scholarly journals How can we improve air pollution? Try increasing trust first

2021 ◽  
pp. 1-21
Author(s):  
Bridget Lynn Hoffmann ◽  
Carlos Scartascini ◽  
Fernando G. Cafferata
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Survey Data ◽  
Mexico City ◽  
Environmental Policies ◽  
Short Term ◽  
The Government ◽  
Polluting Firms

Abstract Environmental policies are characterized by salient short-term costs and long-term benefits that are difficult to observe and to attribute to the government's efforts. These characteristics imply that citizens’ support for environmental policies is highly dependent on their trust in the government's capability to implement solutions and commitment to investments in those policies. Using novel survey data from Mexico City, we show that trust in the government is positively correlated with citizens’ willingness to support an additional tax approximately equal to a day's minimum wage to improve air quality and greater preference for government retention of revenues from fees collected from polluting firms. We find similar correlations using the perceived quality of public goods as a measure of government competence. These results provide evidence that mistrust can be an obstacle to better environmental outcomes.

scholarly journals Health impact assessment of decreases in PM10 and ozone concentrations in the Mexico City Metropolitan Area. A basis for a new air quality management program

2014 ◽  
Vol 56 (6) ◽  
pp. 579 ◽  
Author(s):  
Horacio Riojas-Rodríguez ◽  
Urinda Álamo-Hernández ◽  
José Luis Texcalac-Sangrador ◽  
Isabelle Romieu
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Quality Management ◽  
Mexico City ◽  
Metropolitan Area ◽  
Health Impact Assessment ◽  
Health Impact ◽  
Pollution Reduction ◽  
Air Quality Management ◽  
Selection Of

Objective. To conduct a health impact assessment (HIA) to quantify health benefits for several PM and O3 air pollution reduction scenarios in the Mexico City Metropolitan Area (MCMA). Results from this HIA will contribute to the scientific support of the MCMA air quality management plan (PROAIRE) for the period 2011-2020. Materials and methods. The HIA methodology consisted of four steps: 1) selection of the air pollution reduction scenarios, 2) identification of the at-risk population and health outcomes for the 2005 baseline scenario, 3) selection of concentration-response functions and 4) estimation of health impacts. Results. Reductions of PM10 levels to 20 μg/m3 and O3 levels to 0.050ppm (98 µg/m3) would prevent 2300 and 400 annual deaths respectively. The greatest health impact was seen in the over-65 age group and in mortality due to cardiopulmonary and cardiovascular disease. Conclusion. Improved air quality in the MCMA could provide significant health benefits through focusing interventions by exposure zones.

scholarly journals How Can We Improve Air Pollution?: Try Increasing Trust First

2021 ◽  
Author(s):  
Fernando G. Cafferata ◽  
Bridget Lynn Hoffmann ◽  
Carlos Scartascini
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Survey Data ◽  
Mexico City ◽  
Environmental Policies ◽  
Short Term ◽  
The Government ◽  
Polluting Firms

Environmental policies are characterized by salient short-term costs and long-term benefits that are difficult to observe and to attribute to the government's efforts. These characteristics imply that citizens' support for environmental policies is highly dependent on their trust in the government's capability to implement solutions and commitment to investments in those policies. Using novel survey data from Mexico City, we show that trust in the government is positively correlated with citizens' willingness to support an additional tax approximately equal to a days minimum wage to improve air quality and greater preference for government retention of revenues from fees collected from polluting firms. We find similar correlations using the perceived quality of public goods as a measure of government competence. These results provide evidence that mistrust can be an obstacle to better environmental outcomes.

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