Question

Practice Question 11 .1 The level of suspended particulate matter is very high in Arjun's locality. (a) List any two sources which release suspended particulate matter, (b) Explain the effect of suspended particulate A matter on the body. .2 Fig. 6 shows two towns, A and B. Observe the images and say which town will have higher pollution. Give reasons for your answer. Fig. 6​

Answer 1

Answer:

dang bro i could only find this btw my name is arjun too

Explanation:

6.4. Suspended particulates (TSP/SPM)

6.4.1. Behaviour, effects, emissions

Particulate matter

Airborne particulate matter represents a complex mixture of organic and inorganic substances, covering a wide range of diameters, from <0.1 µm and up to some 100 µm. Mass and composition tend to divide into two principal groups: coarse particles larger than 2.5 µm in aerodynamic diameter, and fine particles smaller than 2.5 µm in aerodynamic diameter. The smaller particles contain the secondarily formed aerosols (gas to particle conversion), combustion particles and recondensed organic and metal vapours. The bulk of fine particulate mass comprise particles of diameter range 0.1-0.5 µm. The larger particles usually contain earth Crystal materials and fugitive dust from roads and industries. The acid component of particulate matter, and most of its mutagenic activity, is generally contained in the fine fraction, although in fog some coarse acid droplets are also present.

Important parts of the "secondary aerosol" are sulphate particles (important for acid deposition and visibility reduction on the regional scale), and organics-containing particles as a result of photochemical reactions (important in large urban areas with photochemical pollution).

"Suspended particulate matter" is measured and characterised in various ways:

Total Suspended Particles is the fraction sampled with high-volume samplers, approximately particle diameters <50-100 µm.

PM10: Inhalable particles, diameter <10 µm. Penetrates through the nose, by nose breathing.

Thoracic particles: approx. equal PM10.

PM2.5: "Fine fraction", diameter <2.5 µ