Why Test the Environment?
Industries, construction, and urban activities impact the environment every day.
If left unchecked, pollution from air, water, noise, or light can:
- Harm human health and nearby ecosystems
- Lead to penalties and operational shutdowns
- Damage your brand reputation and investor confidence
- Disrupt long-term business sustainability and community trust

Regular Environmental Testing Helps You Ensure:

Regular Environmental Testing Helps You Ensure:
- Compliance with CPCB, SPCB, ISO, and global standards
- Protection of workforce, communities, and ecosystems
- Smooth regulatory audits, certifications and renewals
- Evidence of sustainability for stakeholders and investors
Types of Environmental Testing We Provide

Stack Emission Monitoring
Why : Monitors pollutants released from industrial stacks/furnaces.
What we test : SO2, NOx, CO, particulate matter, VOCs, heavy metals.
Who needs it : Manufacturing units, power plants, chemical and pharma industries.

Ambient Air Quality Monitoring (AAQM)
Why : Measures the air quality around your facility and community impact.
What we test : PM2.5, PM10, SO2, NO2, CO, ozone, VOCs.
Who needs it : Factories, construction sites, SEZs, industrial clusters.

Noise Monitoring
Why : High noise levels impact worker safety and community health.
What we test : Day & night noise levels (dB), occupational exposure compliance.
Who needs it : Industrial plants, construction sites, hospitality, urban projects.

Light & Illumination Testing
Why : Poor or excessive lighting impacts productivity and compliance.
What we test : Lux levels, uniformity, glare control as per standards.
Who needs it : Offices, factories, warehouses, public spaces.

Sound & Vibration Testing
Why : Continuous exposure to vibrations sound can affect machinery, workers, and communities.
What we test : Frequency, amplitude, intensity of sound and vibrations.
Who needs it : Heavy industries, transport hubs, infrastructure projects.
Benefits of Environmental Testing with Prewel Labs
Compliance Assurance
Meet CPCB, SPCB, ISO, and environmental norms.
Risk Prevention
Avoid penalties, shutdowns, and NGT actions.
Health & Safety
Protect employees and surrounding communities.
Digital Dashboard
Real time monitoring, AI foresight, and audit ready records.
Sustainability Proof
Demonstrate ESG responsibility to investors & regulators.

Who We Serve
Industrial Units & Factories
Power, cement, steel, chemicals, pharma
Construction & Infrastructure
Roads, buildings, SEZs, metro projects
Hospitality & Real Estate
Hotels, resorts, commercial complexes
Urban Developers & Institutions
Universities, IT parks, industrial estates
Environmental Testing at a Glance
| Test Type | Why It Matters | Key Parameters | Who Needs It |
|---|---|---|---|
| Stack Monitoring | Controls industrial air pollution | SO₂, NOx, CO, PM, VOCs, metals | Factories, power plants |
| Ambient Air Quality | Tracks community air impact | PM2.5, PM10, SO₂, NO₂, CO, O₃ | Industrial areas, construction |
| Noise Monitoring | Protects workers & community | Day/night dB levels | Industry, construction, hospitality |
| Light Testing | Ensures safe, productive workplaces | Lux levels, glare, uniformity | Offices, factories, warehouses |
| Sound & Vibration | Prevents structural & health risks | Frequency, amplitude, intensity | Heavy industry, transport hubs |
FAQs
How often should environmental testing be done for regulatory compliance?
Testing frequency depends on your SPCB/CPCB guidelines:
- Stack Monitoring: Monthly/quarterly
- Ambient Air Quality: 24-hour sampling twice a week or monthly
- Noise Monitoring: Monthly or project-based
- Light & illumination: Annually or after major layout changes
- Sound: Project-based or annual
- Effluent & wastewater testing: Monthly or as per consent conditions
Your compliance certificate mentions the required frequency.
Do you help companies understand and meet SPCB/CPCB consent conditions?
Yes. We guide you on:
- Required tests
- Frequency
- Parameter list
- Documentation for CTO/CTE renewals
- Compliance reporting format (Form IV, environmental statement reports)
What preparations are needed before a site visit for environmental testing?
You should ensure:
- Access to sampling points
- Safety & PPE availability
- Power backup if required
- Production equipment operating at normal load
Our team provides a checklist before the visit.
Do you conduct both on-site and off-site environmental testing?
Yes.
- On-site: Stack monitoring, ambient air, noise, illumination
- Off-site: Water, soil, sludge, hazardous waste analysis in our lab
What is required to conduct stack emission sampling?
A proper sampling port, safe platform, ladder access, and operating conditions as per CPCB norms.
Do you provide audit-ready environmental reports?
Yes. All reports include:
- Calibration traceability
- Method references (APHA, IS, CPCB)
- Raw data
- Graphs/trends (if needed)
- Compliance status
Suitable for audits by SPCB, CPCB, MoEF, NABET, and ISO.
Do you assist with environmental audit documentation?
Yes. We support:
- Annual environment statement (Form V)
- NABET environmental audits
- ISO 14001 documentation
- ESG sustainability reporting
Do you test wastewater, effluent, STP/ETP water, or groundwater?
Yes. We test COD, BOD, heavy metals, pH, oil & grease, nutrients, and more as per CPCB standards.
Do you provide soil and hazardous waste testing?
Yes. We analyze soil, sludge, ash, and hazardous waste for contamination, and organic pollutants.
Do you provide environmental testing services across India?
Yes. We serve industries nationwide with on-site monitoring teams available in major cities.
Can you support international environmental testing or audits?
Yes. We assist foreign companies with compliance audits, documentation, and analytical testing for Indian operations.
Do you offer annual maintenance contracts (AMC) for environmental testing?
Yes. AMC packages include regular monitoring of:
- Stack emissions
- Ambient air quality
- Noise & vibration
- STP/ETP analysis
- Workplace illumination
- Water, soil, and hazardous waste
Do you offer continuous environmental monitoring?
We integrate with digital environmental meters and provide dashboard-based monitoring for AQI, noise, and emissions.
Do you provide emergency testing during pollution incidents or complaints?
Yes. We support industries during:
- Pollution complaints
- Accidental emissions
- Sudden odour issues
- Community grievances
We provide rapid sampling and reporting.
Does Prewel Labs help interpret results and suggest corrective actions?
Yes. We provide guidance on:
- Exceeding parameters
- Process improvements
- Compliance strategies
- Risk mitigation plans
Do you provide environmental consulting along with testing?
Yes. We offer consulting for ETP performance, emissions control, workplace safety, and compliance management.
Are your environmental testing instruments calibrated and traceable?
Yes. All instruments are calibrated with traceability to NABL/NIST standards, ensuring highly accurate results.
How much does environmental testing cost?
Costs depend on:
- Type of test
- Number of parameters
- Frequency
- On-site requirements
Customised packages are available for SMEs and large industries.
What is the typical turnaround time?
- On-site reports: 1–3 days
- Lab analysis: 3–7 days
- Large environmental panels: 7–14 days
- Urgent reporting is also available.
Can environmental testing help with ESG reporting?
Yes. Data from stack, air, water, waste, and noise testing forms the foundation for:
- ESG reports
- Sustainability certification
- Investor disclosures
- Corporate transparency documents























