Testing & Monitoring
Noise Level Monitoring
Measure noise at your boundary and inside the plant, compare it with legal limits, and get practical solutions where levels are too high.
Quick answer
Under the Noise Pollution (Regulation and Control) Rules, 2000, ambient noise in industrial areas must stay within 75 dB(A) by day (6 a.m.–10 p.m.) and 70 dB(A) at night. Many consents require periodic boundary noise monitoring. Practical controls include acoustic enclosures, silencers, vibration isolation, barriers and maintenance of noisy equipment.
Reviewed by the Aaradhya Enviro compliance team · 18 October 2026
Overview
The Noise Pollution (Regulation and Control) Rules, 2000 set ambient noise limits by area category for day and night time, and consents frequently require periodic boundary noise monitoring. Inside the factory, high noise affects worker health and is regulated under factory safety rules.
We carry out boundary, ambient and workplace noise surveys with calibrated sound level meters, map high-noise areas and identify the main sources. Our recommendations focus on practical controls such as acoustic enclosures, silencers, vibration isolation, barriers and layout changes, along with hearing protection where engineering controls are not enough.
Who needs this service
- Industries with boundary noise monitoring conditions in their consent
- Units with DG sets, compressors, blowers, presses or crushers
- Plants near residential areas facing complaints
- Factories assessing worker noise exposure
What we cover
Boundary & ambient noise
Day and night measurements at the premises boundary and receptors.
Workplace noise survey
Area-wise noise mapping inside the plant.
DG set noise
Checks against DG set noise requirements and enclosure performance.
Source identification
Equipment-wise measurements to find the main contributors.
Noise control plan
Enclosures, silencers, isolation, barriers and maintenance measures.
Reporting
Report with readings, location map and compliance status.
Our process
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Step 1
Planning
Locations, timings and applicable area category.
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Step 2
Measurement
Readings with calibrated instruments, day and night.
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Step 3
Analysis
Comparison with applicable limits.
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Step 4
Source study
Identification of high-noise equipment.
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Step 5
Recommendations
Prioritised, cost-effective control measures.
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Step 6
Re-survey
Verification after controls are installed.
What you receive
- Noise monitoring report with location map
- Day / night compliance status
- Workplace noise map
- Noise control recommendations
- Re-survey report after improvements
Applicable regulations
- Noise Pollution (Regulation and Control) Rules, 2000
- Noise limits for DG sets notified under the Environment (Protection) Rules
- Factories Act and Maharashtra Factories Rules (workplace exposure)
Regulations are amended from time to time; we always work to the version currently in force and the conditions in your own consent.
FAQ
Noise Level Monitoring: frequently asked questions
What are the ambient noise limits for industrial areas?
What is day time and night time under the rules?
How can factory noise be reduced?
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Discuss Noise Level Monitoring with our team
Share your requirement and get a clear scope, timeline and estimate.