Alterações cardiopulmonares induzidas em ratos saudáveis após a instilação nasal subcrônica de suspensão aquosa de material particulado fino em concentração ambiental

Binoki, Daniella Harumy

doi:10.11606/t.5.2010.tde-03092010-112925

Cited by 1 publication

(1 citation statement)

References 112 publications

(186 reference statements)

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“…Most cities in Chile have annual average PM 2.5 concentrations that exceed 20 µg/ m 3 , the Chilean national standard. 1,2 The unique geography of Chile, and its varied climatic conditions, impact the pollution sources. Although cities in the northern and central regions suffer from mining, industrial and mobile sources, cities in the southern regions suffer mainly from residential wood burning pollution.…”

Section: Introductionmentioning

confidence: 99%

Chronic exposure to fine particles (PM2.5) and mortality: Evidence from Chile

Busch¹,

Cifuentes²,

Cabrera³

2023

Environmental Epidemiology

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Background: Many Chilean cities suffer from high air pollution from industrial, mobile, and residential wood-burning sources. Several studies have linked PM2.5 air pollution exposure to higher mortality risk from cardiovascular, pulmonary, and lung cancer causes. In recent years, Chile has developed an extensive air pollution monitoring network to enforce air quality standards for PM2.5, allowing the study of the medium-term association between PM2.5 and mortality. Methods: A negative binomial regression model was used to study the association between 3-year average PM2.5 concentrations and age-adjusted mortality rates for 105 of the 345 municipalities in Chile. Models were fitted for all (ICD10 A to Q codes), cardiopulmonary (I and J), cardiovascular (I), pulmonary (J), cancer (C), and lung cancer (C33-C34) causes; controlling for meteorological, socioeconomic, and demographic characteristics. Results: A significant association of PM2.5 exposure with cardiopulmonary (relative risk for 10 µg/m3 PM2.5: 1.06; 95% confidence interval = 1.00, 1.13) and pulmonary (1.11; 1.02, 1.20) age-adjusted mortality rates was found. Cardiovascular (1.06; 0.99, 1.13) and all causes (1.02; 0.98, 1.07) were positive, but not significant. No significant association was found between cancer and lung cancer. The positive associations remained even when controlling for multiple confounding factors, model specifications, and when considering different methods for exposure characterization. These estimates are in line with results from cohort studies from the United States and European studies. Conclusion: Three-year average PM2.5 exposure is positively associated with the age-adjusted mortality rate for cardiopulmonary and cardiovascular causes in Chile. This provides evidence of the medium-term exposure effect of fine particles on long-term mortality rates.

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Section: Introductionmentioning

confidence: 99%