Multi-elemental measurements of air particulate pollution at a site in mexico city

Barfoot, K.M.; Vargas–Aburto, C.; MacArthur, J. D.; Jaider, A.; García-Santibáñez, F.; Fuentes-Gea, Vicente

doi:10.1016/0004-6981(84)90124-0

Cited by 8 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Williams et al (1995) concluded that the combination of these two factors is a relatively short residency time for morning rush-hour emissions, and a long residency time for afternoon and evening emissions. Residents in the southern part of Mexico City are exposed to photochemical smog (Garcia-Gutierrez et al, 1991), airborne particulates (Barfoot et al, 1984;Cicero-Fernandez et al, 1993), formaldehyde and acetaldehyde Baez et al, 1995), and alkane hydrocarbons (propane, isobutane, and n-butane) (Blake & Rowland, 1995). Daily ozone concentrations are recorded above the NAAQS all year long, while PM 10 and PM 2.5 are usually below their respective NAAQS (PM 10 150 µg/m 3 for a 24-h average and 50 µg/m 3 for an annual average; PM 2.5 65 µg/m 3 for a 24-h average and 15 µg/m 3 for an annual standard).…”

Section: Study Areasmentioning

confidence: 99%

EXPOSURE TO AIR POLLUTION IS ASSOCIATED WITH LUNG HYPERINFLATION IN HEALTHY CHILDREN AND ADOLESCENTS IN SOUTHWEST MEXICO CITY: A Pilot Study

Calderón‐Garcidueñas

Mora-Tiscareño

Chung

et al. 2000

Inhalation Toxicology

View full text Add to dashboard Cite

Air pollution produces adverse health effects. The consequences of lifelong daily exposures to atmospheric pollutants upon the respiratory apparatus of healthy children are of considerable clinical importance. We investigated the association between exposure to a highly polluted urban environment with a complex mixture of air pollutants-ozone and particulate matter the predominant ones-and chest x-ray abnormalities in 59 healthy Mexican children who are lifelong residents of Southwest Metropolitan Mexico City (SWMMC), with a negative history of tobacco exposure and respiratory illnesses. Their clinical results and x-ray findings were compared to those of 19 Mexican control children, residents of a low-pollution area, with a similar negative history of tobacco exposure and respiratory illnesses. Ozone concentrations in SWMMC exceeded the U.S. Environmental Protection Agency (U.S. EPA) National Ambient Air Quality Standard (NAAQS) for O(3): 0.08 ppm as 1-h maximal concentration, not to be exceeded more than 4 times a year, on 71% of days in 1986 and 95% in 1997, with values as high as 0.48 ppm. Ozone maximal peaks are usually recorded between 2 and 5 pm coinciding with children's outdoor physical activities. Children in the control group reported no upper or lower respiratory symptomatology. Every SWMMC child complained of upper and/or lower respiratory symptoms, including epistaxis, nasal dryness and crusting, cough, shortness of breath, and chest discomfort. Children aged 7-13 yr had the most symptomatology, while 5- to 6-year olds and adolescents with the lowest number of statistically significant outdoor exposure hours had less respiratory symptoms. Bilateral symmetric mild lung hyperinflation was significantly associated with exposure to the SWMMC atmosphere (p = .0004). Chronic and sustained inhalation of a complex mixture of air pollutants, including ozone and particulate matter (PM), is associated with lung hyperinflation, suggestive of small airway disease, in a population of clinically healthy children and adolescents. Small airways are a target of air pollutants in SWMMC children, with ozone and PM being most likely responsible, based on experimental animal, controlled-chamber, and epidemiological data available. Our main concern is the potential likelihood for the development of chronic lung disease in this highly exposed population.

show abstract

Section: Study Areasmentioning

confidence: 99%

EXPOSURE TO AIR POLLUTION IS ASSOCIATED WITH LUNG HYPERINFLATION IN HEALTHY CHILDREN AND ADOLESCENTS IN SOUTHWEST MEXICO CITY: A Pilot Study

Calderón‐Garcidueñas

Mora-Tiscareño

Chung

et al. 2000

Inhalation Toxicology

View full text Add to dashboard Cite

show abstract

“…This problem is particularly critical during the cold season (December-February), during which the low temperatures stabilize the atmosphere above the basin and the air pollutants accumulate in the stationary mass of air that hovers, entrapped, above the city (SEDUE 1986;Velasco Levy 1983). Early studies of the lead (Pb) and bromine (Br) content in the air in Mexico City showed that, quantitatively, most of the air pollution originated from automobile exhaust (Barfoot et al 1984;Sigler Andrade, Fuentes Gea, and Vargas Aburto 1982). According to Bravo's (1987) detailed report, vehicles produce most of the carbon monoxide and hydrocarbon residues in the basin, but fixed sources are responsible for a large proportion of the suspended particles and most of the sulphur oxides (table 4.10).…”

Section: Air Qualitymentioning

confidence: 99%

The Basin of Mexico: Critical Environmental Issues and Sustainability

Whitmore¹,

Ezcurra²,

Mazarí-Hiriart³

et al. 2000

Geographical Review

View full text Add to dashboard Cite

The United Nations University is an organ of the United Nations established by the General Assembly in 1972 to be an international community of scholars engaged in research, advanced training, and the dissemination of knowledge related to the pressing global problems of human survival, development, and welfare. Its activities focus mainly on the areas of peace and governance, environment and sustainable development, and science and technology in relation to human welfare. The University operates through a worldwide network of research and postgraduate training centres, with its planning and coordinating headquarters in Tokyo.

show abstract

“…Although the aerosols have been widely studied around the world (Lopes et al 2006;Okuda et al 2004;Chen et al 2003), in México this material has been principally studied in México City (Chow et al 2002b;Mugica et al 2002;Diaz et al 2002;Barfoot et al 1984) and in some other cities like Monterrey (Aldape et al 1999b), Hidalgo (Aldape et al 1999a), San Luis Potosi (Aragon-Piña et al 2002), and Colima (Miranda et al 2004). The RAMA 1 was established in 1986, but historical databases are available since 1990 (SIMAT 2007).…”

Section: Introductionmentioning

confidence: 98%

Metal Content in Air Samples Collected in an Urban Zone in Tampico, México: A First Survey

Flores

Rodríguez-Espinosa

Oca-Valero

et al. 2007

Human and Ecological Risk Assessment: An International Journal

View full text Add to dashboard Cite

With the aim to know possible risks to the population, Cd, Co, Cr, Cu, Mn, Ni, Pb, and Tl were determined for the first time in airborne samples of particulate matter in an urban zone in Tampico, México, during the winter of 2003. The 24-hour PM 10 samples were collected every 6 days on quartz-filters by using a high volume sampler and analyzed by Inductively Coupled Plasma Optical Emission Spectrometer. Standard reference material was used to verify metal recovery. The maximum PM 10 and lead concentrations were 12.05 and 0.040 µg/m 3 , respectively, not exceeding Méxican standard values. The greatest metal concentration was that of manganese with 0.90 µg/m 3 , followed by Cu and Ni with 0.17 and 0.012 µg/m 3 , respectively. Agglomerates, well-defined particles, and heavy metals (e .g., Mn and Cu) were found in PM 10 using Scanning Electron Microscopy and Energy Dispersive Spectroscopy. Meteorological conditions associated with the sampling period showed that Pb and Ni are being continuously emitted, and that Mn, Cu, and Co could come from one industry located to the WSW of the region. All of these concentrations do not constitute a potential risk to human health, although it is necessary to continue studying the high concentrations of Mn and Cu in longer sampling periods.

show abstract

Multi-elemental measurements of air particulate pollution at a site in mexico city

Cited by 8 publications

References 15 publications

EXPOSURE TO AIR POLLUTION IS ASSOCIATED WITH LUNG HYPERINFLATION IN HEALTHY CHILDREN AND ADOLESCENTS IN SOUTHWEST MEXICO CITY: A Pilot Study

EXPOSURE TO AIR POLLUTION IS ASSOCIATED WITH LUNG HYPERINFLATION IN HEALTHY CHILDREN AND ADOLESCENTS IN SOUTHWEST MEXICO CITY: A Pilot Study

The Basin of Mexico: Critical Environmental Issues and Sustainability

Metal Content in Air Samples Collected in an Urban Zone in Tampico, México: A First Survey

Contact Info

Product

Resources

About