4.7 Article

Effects of Ambient Particulate Matter (PM2.5) Exposure on Calorie Intake and Appetite of Outdoor Workers

Journal

NUTRIENTS
Volume 14, Issue 22, Pages -

Publisher

MDPI
DOI: 10.3390/nu14224858

Keywords

air pollution; particulate matter (PM2 5); Simplified Nutritional Appetite Questionnaire (SNAQ); calorie intake; outdoor workers

Funding

  1. Ministry of Higher Education, Malaysia [FRGS/1/2020/SKK06/UCSI/02/3]
  2. UCSI University, Malaysia [REIG-FMS-2020/045, REIG-FMS-2020/010]

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This study examined the effects of PM2.5 exposure on dietary intake among working individuals. The findings revealed a significant association between outdoor workers' dietary intake and PM2.5 exposure, suggesting that prolonged exposure to PM2.5 may increase the risk of metabolic syndromes and other health conditions.
Malaysia has been experiencing smoke-haze episodes almost annually for the past few decades. PM2.5 is the main component in haze and causes harmful impacts on health due to its small aerodynamic size. This study aimed to explore the implications of PM2.5 exposure on the dietary intake of working individuals. Two phased 13-weeks follow-up study was conducted involving 440 participants, consisting of two cohorts of outdoor and indoor workers. Ambient PM2.5 concentrations were monitored using DustTrakTM DRX Aerosol Monitor. Data on Simplified Nutritional Appetite Questionnaire (SNAQ) and 24 h diet recall were collected weekly. The highest PM2.5 concentration of 122.90 +/- 2.07 mu g/m(3) was recorded in August, and it vastly exceeded the standard value stipulated by US EPA and WHO. SNAQ scores and calorie intake were found to be significantly (p < 0.05) associated with changes in PM2.5 exposure of outdoor workers. Several moderate and positive correlations (R-value ranged from 0.4 to 0.6) were established between SNAQ scores, calorie intake and PM2.5 exposure. Overall findings suggested that long hours of PM2.5 exposure affect personal dietary intake, potentially increasing the risk of metabolic syndromes and other undesired health conditions. The current policy should be strengthened to safeguard the well-being of outdoor workers.

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