EKOLOGJYA
Ifloslantiruvchi moddalar tabiiy va sun’iy uchuvchan moddaning
deyarli barcha qo’shilmalarini o’z ichiga olishi hamda qattiq
zarrachalar, suyuqlik tomchilari,
gaz va qorishma shaklida
bo’lishi mumkin. Umuman olganda, ifloslantiruvchi moddalar
ikki guruhga bo’linadi: 1) aniqlash mumkin bo’lgan manbalardan
bevosita havoga chiqariladigan, 2)
ikki yoki va undan ortiq
birlamchi ifloslantimvchi moddalarning o ’zaro ta’siri yoki
ifloslantiruvchi moddaning, odatda atmasferada mavjud modda
bilan reksiyasi natijasida, yorug’lik tasirida yoxud tasirsiz havoda
hosil bo’ladigan ifloslantiruvchi moddalar.
Air pollutant - any substance in air that could,
in high enough
concentration, harm man, animals, vegatationor material.
Pollutants may include almost any natural or artificial
composition o f airborne matter capable o f being airborne. They
may be in the form o f solid particles,
liquid droplets, gases, or in
combination thereof. Generally, they fall into two may in groups:
1) those emitted directly from identifiable sources (see air
emissions) and
2) those produced in the air by interaction
between two or more primary pollutants,
or by reaction with
normal atmospheric constituents, with or without photo
activation.
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