Page 76 - DPR Rishikesh Legacy_Neat

Environmental Baseline Study of Municipal Solid Waste Dumpsite, Rishikesh, Uttarakhand

4. Ambient Noise: Digital sound level meter are used to take samples of noise. A sound level
meter is used for acoustic (sound that travels through air) measurements. It is commonly a hand-

held instrument with a microphone. The diaphragm of the microphone responds to changes in air

pressure caused by sound waves.

5.1 Quantification of Legacy Waste Sample: This comprise of following activities:

a) Two samples were collected in cross-gradient of the site. One sample is collected from Up-

ECON Laboratory & Consultancy, Dehradun
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