Particulate matters emitted by an firewood cook stove

2. Introduction

Emission of particulate matters (PM2.5 and PM10, hereafter referred as PM(s)) from open-fired and simple firewood stoves is commonplace in the household across Vietnam, but the health effects have been unnoticed. In part, firewood stoves are common and have been presumed with no adverse effects to users. In addition, lower incomes and other more priority tasks leave not much choice for the household in the rural area for cleaner fuels such as gas or electricity. Another comprehensive review of household cooking links PM to inherent risks variety of illness and contributing to the PM2.5 globally. Gas stove is considered cleaner than wood stove; nevertheless, a recent study on gas stoves concluded the risks of producing fine (PM2.5) and ultrafine particles with such stoves.

With the availability of low-cost dust sensors such as Plantower PMS7003, Nova Fitness SDS011, evaluating the magnitude change of PM(s) while cooking compared to the background PM(s) concentration becomes readily. In this study, the author conducted a 3-day monitoring campaign with 3 episodes of cooking events in the mornings. A cooking period is defined as the time with an active flame or with smoke residuals. The study does not include PM(s) emitted by foods and oils.