Repositorio
Institucional

Ruiz-Rudolph, Pablo

Blanco, Estela

Rubilar, Francisco

Quinteros, Maria Elisa

Cayupi, Karen

Ayala, Salvador

Lu, Siyao

Jimenez, Raquel B.

Blazquez, Carola A.

Delgado-Saborit, Juana Maria

Harrison, Roy M.

Cardenas, Juan Pablo

Spatial distribution of particulate matter on winter nights in Temuco, Chile: Studying the impact of residential wood-burning using mobile monitoring

PERGAMON-ELSEVIER SCIENCE LTD

ATMOSPHERIC ENVIRONMENT

en

Temuco, a medium-sized city in the south of Chile, is heavily impacted by residential wood-burning particularly in winter, which causes strong episodes of air pollution. We spatially characterized the distribution of particulate matter (PM) during winter nights in Temuco using mobile measurements. In winter 2016 (June 8-July 15th), continuous monitors for PM <= 2.5 mu m (PM2.5) and ultrafine particles <0.1 mu m (UFP) were deployed in a vehicle along with a positioning system during 20 nights (20:00 to 2:00) in assigned routes that crossed the city and additional sampling was conducted at a central site. Measurements were expressed as concentrations and ratios to central site concentrations and collapsed by spatial grids of 50, 100, 200, and 400 m. Average PM2.5 concentrations were similar to 100 mu g m(-3), while UFP similar to 30,000 counts cm(-3). Some neighborhoods had concentrations of PM2.5 nearly double those measured at a centrally located site, while other neighborhoods had less than half the measured level. We identified hotspots and cold spots of PM2.5 and UFP throughout the urban area-and observed some neighborhoods in which over 20% of the area was categorized as a hotspot for one of the pollutants (14 for PM2.5 and 11 for UFP out of 34). Using mobile monitoring-a relatively simple and inexpensive methodology-we characterized the spatial distribution of pollutants and likely clusters for the time period, which may guide future spatial campaigns and help targeting local interventions aimed at air pollution mitigation.

artículo original

"This work was supported by ""Impact of Wood-burning Air Pollution on Preeclampsia and other Pregnancy Outcomes in Temuco, Chile"" (DPI2140093) by CONICYT and Research Councils UK. Estela Blanco, Maria Elisa Quinteros, and Salvador Ayala were supported by a doctoral scholarship by ANID Beca Doctorado Nacional, Chile No. 21201332, No. 21150801 and No. 21191111, respectively. Juana Maria Delgado-Saborit was supported by the European Union's Horizon 2020 research and innovation programme under the Marie Skodowska-Curie grant agreement No. 750531.

Este trabajo fue apoyado por ""Impacto de la contaminación del aire por combustión de leña en la preeclampsia y otros resultados del embarazo en Temuco, Chile"" (DPI2140093) de CONICYT y Research Councils UK. Estela Blanco, María Elisa Quinteros y Salvador Ayala contaron con una beca doctoral de la ANID Beca Doctorado Nacional, Chile N° 21201332, N° 21150801 y N° 21191111, respectivamente. Juana María Delgado-Saborit contó con el apoyo del programa de investigación e innovación Horizonte 2020 de la Unión Europea bajo el acuerdo de subvención Marie Skodowska-Curie N° 750531."

10.1016/j.atmosenv.2022.119255

PDF

Air pollution

Air quality

Wood smoke

Global positioning system

Mobile sampling

AIR-POLLUTION

ULTRAFINE PARTICLES

PM2.5

SANTIAGO

VARIABILITY

EMISSIONS

MODEL

CITY

COMBUSTION

POLLUTANTS

Ciencias Ambientales

Meteorología y Ciencias Atmosféricas

Contaminación del aire

Calidad del aire

Humo de madera

Sistema de posicionamiento global

Muestreo móvil

CONTAMINACIÓN DEL AIRE

PARTICULAS ULTRAFINAS

PM2.5

SANTIAGO

VARIABILIDAD

EMISIONES

MODELO

CIUDAD

COMBUSTIÓN

CONTAMINANTES

Ciencias del Medio Ambiente

Meteorología y Ciencias Atmosféricas

Ingeniería Ambiental y Geológica

Spatial distribution of particulate matter on winter nights in Temuco, Chile: Studying the impact of residential wood-burning using mobile monitoring

artículo original

version publicada

0

metadata

metadata

WOS:000826683600001

ANID DPI2140093

ANID 21150801

ANID 21201332

UE 750531