Particulate air pollution (pm2.5 and pm10) and medical consultations due to respiratory disease in Medellín (2008-2009)

Abstract

ABSTRACT: Scientific evidence shows how air pollution has negative effects on human health. Medellin city (Colombia) has high levels of air pollution (according to Redaire’s measurements) as well as a high rate of medical and emergency consultations due to respiratory disease (according to Metrosalud’s measurements). Objective: to show statistical evidence of the positive relationship between pollution due to pm2.5 and pm10 particulate matter and the medical and emergency consultations due to respiratory diseases (asthma, bronchitis, infections, and rhinitis). Methodology: a number of time series models were applied on daily records of pm10 and pm2.5 particles. A total of ten models were calculated using ordinary least squares (OLS) with White’s correction in order to adjust heteroskedasticity problems. Initially, five models were used for the consultations caused by respiratory disease and pm10 particles. Then, five additional models were used for the consultations caused by respiratory diseases and pm2.5 particles. Results: particulate air pollution leads to respiratory disease, thus becoming a public health problem in Medellín, Colombia.RESUMEN: La evidencia científica muestra cómo la contaminación del aire genera efectos negativos en la salud humana. En Medellín, Colombia, se registra un alto nivel de contaminación del aire por material particulado (medido por Redaire) y un considerable volumen de consultas externas y por urgencias a causa de enfermedades respiratorias, medidas por Metrosalud. Objetivo: presentar evidencia estadística de la relación positiva entre contaminación por material particulado pm2,5 y pm10 y las consultas externas y por urgencia debidas a enfermedades respiratorias (asma, bronquitis, infecciones, rinitis). Metodología: se emplearon modelos de series de tiempo sobreregistros diarios de medición para pm10 y pm2,5; se estimaron diez modelos por mínimos cuadrados ordinarios con corrección de White para ajustar problemas de heterocedasticidad; cinco modelos con consultas por enfermedades respiratorias y pm10; y cinco modelos con consultas por enfermedades respiratorias y pm2,5. Resultados: se concluye que la contaminación del aire por material particulado provoca problemas respiratorios y, en consecuencia, es un problema de salud pública en Medellín

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