Source, the source of dust basically divided into 2 major categories is the dust that arises from nature (Natural Particle) without human action into relevant but somehow include soil dust, sea salt, sand and stones, etc.These types of dust particles affect health is less, because when you breathe is filtered by the respiratory system, and eliminate out of breath can make a little sense. Another is that the dust comes from man-made activities (men-made Particle): transportation dust caused by traffic in the big city static or dust will be distributed according to the various locations. Construction Many types of construction are often open on clay before creating causing dust. Industrial plants Burning fuels such as fuel oil Coal To apply the energy used in the production process. Like to shake a child to crush phai, etc. Dust particle emissions from industrial processes, mainly small dust particles
.
การแปล กรุณารอสักครู่..