Using daily excessive concentration hours to explore the short-term mortality effects of ambient PM2.5 in Hong Kong

Hualiang Lin, Wenjun Ma, Hong Qiu, Xiaojie Wang, Edwin Trevathan, Zhenjiang Yao, Guang Hui Dong, Michael G. Vaughn, Zhengmin Qian, Linwei Tian

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We developed a novel indicator, daily excessive concentration hours (DECH), to explore the acute mortality impacts of ambient fine particulate matter pollution (PM2.5) in Hong Kong. The DECH of PM2.5 was calculated as daily concentration-hours >25 μg/m3. We applied a generalized additive models to quantify the association between DECH and mortality with adjustment for potential confounders. The results showed that the DECH was significantly associated with mortality. The excess mortality risk for an interquartile range (565 μg/m3*hours) increase in DECH of PM2.5 was 1.65% (95% CI: 1.05%, 2.26%) for all natural mortality at lag 02 day, 2.01% (95% CI: 0.82%, 3.21%) for cardiovascular mortality at lag 03 days, and 1.41% (95% CI: 0.34%, 2.49%) for respiratory mortality at lag 2 day. The associations remained consistent after adjustment for gaseous air pollutants (daily mean concentration of SO2, NO2 and O3) and in alternative model specifications. When compared to the mortality burden of daily mean PM2.5, DECH was found to be a relatively conservative indicator. This study adds to the evidence by showing that daily excessive concentration hours of PM2.5 might be a new predictor of mortality in Hong Kong.

Original languageEnglish (US)
Pages (from-to)896-901
Number of pages6
JournalEnvironmental Pollution
Volume229
DOIs
StatePublished - Jan 1 2017

Fingerprint

Hong Kong
Air Pollutants
Particulate Matter
Mortality
Pollution
Specifications
Air

All Science Journal Classification (ASJC) codes

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Lin, Hualiang ; Ma, Wenjun ; Qiu, Hong ; Wang, Xiaojie ; Trevathan, Edwin ; Yao, Zhenjiang ; Dong, Guang Hui ; Vaughn, Michael G. ; Qian, Zhengmin ; Tian, Linwei. / Using daily excessive concentration hours to explore the short-term mortality effects of ambient PM2.5 in Hong Kong. In: Environmental Pollution. 2017 ; Vol. 229. pp. 896-901.
@article{cba5d1cc34e74fe3bb5b395b6e1c2101,
title = "Using daily excessive concentration hours to explore the short-term mortality effects of ambient PM2.5 in Hong Kong",
abstract = "We developed a novel indicator, daily excessive concentration hours (DECH), to explore the acute mortality impacts of ambient fine particulate matter pollution (PM2.5) in Hong Kong. The DECH of PM2.5 was calculated as daily concentration-hours >25 μg/m3. We applied a generalized additive models to quantify the association between DECH and mortality with adjustment for potential confounders. The results showed that the DECH was significantly associated with mortality. The excess mortality risk for an interquartile range (565 μg/m3*hours) increase in DECH of PM2.5 was 1.65{\%} (95{\%} CI: 1.05{\%}, 2.26{\%}) for all natural mortality at lag 02 day, 2.01{\%} (95{\%} CI: 0.82{\%}, 3.21{\%}) for cardiovascular mortality at lag 03 days, and 1.41{\%} (95{\%} CI: 0.34{\%}, 2.49{\%}) for respiratory mortality at lag 2 day. The associations remained consistent after adjustment for gaseous air pollutants (daily mean concentration of SO2, NO2 and O3) and in alternative model specifications. When compared to the mortality burden of daily mean PM2.5, DECH was found to be a relatively conservative indicator. This study adds to the evidence by showing that daily excessive concentration hours of PM2.5 might be a new predictor of mortality in Hong Kong.",
author = "Hualiang Lin and Wenjun Ma and Hong Qiu and Xiaojie Wang and Edwin Trevathan and Zhenjiang Yao and Dong, {Guang Hui} and Vaughn, {Michael G.} and Zhengmin Qian and Linwei Tian",
year = "2017",
month = "1",
day = "1",
doi = "10.1016/j.envpol.2017.07.060",
language = "English (US)",
volume = "229",
pages = "896--901",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Limited",

}

Using daily excessive concentration hours to explore the short-term mortality effects of ambient PM2.5 in Hong Kong. / Lin, Hualiang; Ma, Wenjun; Qiu, Hong; Wang, Xiaojie; Trevathan, Edwin; Yao, Zhenjiang; Dong, Guang Hui; Vaughn, Michael G.; Qian, Zhengmin; Tian, Linwei.

In: Environmental Pollution, Vol. 229, 01.01.2017, p. 896-901.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Using daily excessive concentration hours to explore the short-term mortality effects of ambient PM2.5 in Hong Kong

AU - Lin, Hualiang

AU - Ma, Wenjun

AU - Qiu, Hong

AU - Wang, Xiaojie

AU - Trevathan, Edwin

AU - Yao, Zhenjiang

AU - Dong, Guang Hui

AU - Vaughn, Michael G.

AU - Qian, Zhengmin

AU - Tian, Linwei

PY - 2017/1/1

Y1 - 2017/1/1

N2 - We developed a novel indicator, daily excessive concentration hours (DECH), to explore the acute mortality impacts of ambient fine particulate matter pollution (PM2.5) in Hong Kong. The DECH of PM2.5 was calculated as daily concentration-hours >25 μg/m3. We applied a generalized additive models to quantify the association between DECH and mortality with adjustment for potential confounders. The results showed that the DECH was significantly associated with mortality. The excess mortality risk for an interquartile range (565 μg/m3*hours) increase in DECH of PM2.5 was 1.65% (95% CI: 1.05%, 2.26%) for all natural mortality at lag 02 day, 2.01% (95% CI: 0.82%, 3.21%) for cardiovascular mortality at lag 03 days, and 1.41% (95% CI: 0.34%, 2.49%) for respiratory mortality at lag 2 day. The associations remained consistent after adjustment for gaseous air pollutants (daily mean concentration of SO2, NO2 and O3) and in alternative model specifications. When compared to the mortality burden of daily mean PM2.5, DECH was found to be a relatively conservative indicator. This study adds to the evidence by showing that daily excessive concentration hours of PM2.5 might be a new predictor of mortality in Hong Kong.

AB - We developed a novel indicator, daily excessive concentration hours (DECH), to explore the acute mortality impacts of ambient fine particulate matter pollution (PM2.5) in Hong Kong. The DECH of PM2.5 was calculated as daily concentration-hours >25 μg/m3. We applied a generalized additive models to quantify the association between DECH and mortality with adjustment for potential confounders. The results showed that the DECH was significantly associated with mortality. The excess mortality risk for an interquartile range (565 μg/m3*hours) increase in DECH of PM2.5 was 1.65% (95% CI: 1.05%, 2.26%) for all natural mortality at lag 02 day, 2.01% (95% CI: 0.82%, 3.21%) for cardiovascular mortality at lag 03 days, and 1.41% (95% CI: 0.34%, 2.49%) for respiratory mortality at lag 2 day. The associations remained consistent after adjustment for gaseous air pollutants (daily mean concentration of SO2, NO2 and O3) and in alternative model specifications. When compared to the mortality burden of daily mean PM2.5, DECH was found to be a relatively conservative indicator. This study adds to the evidence by showing that daily excessive concentration hours of PM2.5 might be a new predictor of mortality in Hong Kong.

UR - http://www.scopus.com/inward/record.url?scp=85026450421&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85026450421&partnerID=8YFLogxK

U2 - 10.1016/j.envpol.2017.07.060

DO - 10.1016/j.envpol.2017.07.060

M3 - Article

C2 - 28760525

AN - SCOPUS:85026450421

VL - 229

SP - 896

EP - 901

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -