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Ambient Air Quality monitoring or Testing is a process of measurement of pollutants present in the atmosphere. It measures the healthiness and safety of our environment.

What is Ambient Air Quality?

Ambient air quality is defined as the quality of air outside and sometimes inside. Ambient air quality standards are limits to concentrations of pollutants in air stated for well being of human, nature, animals, etc. There is no single specified definition of standards resulting, Various organizations use standards which are not often similar. Ambient air quality monitoring is also called as Outdoor Air Quality Testing.

What is Air Quality Monitoring?

Air quality monitoring is the process of assessment of pollutants present in the atmosphere by their quantity and types as per air quality standards. Air quality monitoring helps us to take action based on pollutants present in atmosphere to improve air quality

Why Ambient Air Quality Monitoring or Testing Required?

Air Pollution - Ambient air quality monitoring

Air Pollution is the introduction of Chemicals, Particulates or other Harmful materials into atmosphere causes/damage to living organism/Built Organism. Air pollutants are added in the atmosphere from a variety of sources that change the composition of the atmosphere and affect the biotic environment. The concentration of air pollutants depends not only on the quantities that are emitted from air pollution sources but also on the ability of the atmosphere to either absorb or disperse these emissions. The sources of air pollutants include vehicles, industries, domestic sources and natural sources. Because of the presence of a high amount of air pollutants in the ambient air, the health of the population an

property is getting adversely affected. In order to arrest the deterioration in air quality, Govt. of India has enacted the Air (Prevention and Control of Pollution) Act in 1981. The responsibility has been further emphasized under the Environment (Protection) Act, 1986. Therefore, the Central  Pollution Control Board had started National Ambient Air Quality Monitoring (NAAQM) Network during 1984 – 85 at the national level. The program was later renamed as National Air Quality Monitoring Program (NAMP).

Ambient Air Quality Monitoring & Testing Methodology

Air Quality Monitoring - Ambient air quality monitoring

Ambient air quality monitoring & testing is required to determine the existing quality of air, evaluation of the effectiveness of the control program. National Air Quality Monitoring Program is described in this chapter along with details on pollutants measured and their frequency. Similarly, Guidelines for monitoring are made for carrying out AAQM under NAMP and description of the program is essential as the monitoring is carried out to meet the objectives of NAMP.

Various types of equipment are used to find the amount of Air pollution done by a particular source called ‘’Air Monitoring Equipment.’’ Evaluation of Ambient Air for determination of community air Quality as related to local health, Social & Environmental Effects. Determination of suspended particulate matter as small as one-micron size & any four gaseous contaminants at a time.

Ambient Air Quality Monitoring or Testing Parameters

Under N.A.M.P., 12 air pollutants viz., Sulphur Dioxide (SO2), Oxides of Nitrogen as NO2 and Particulate Matter (PM10) and Particulate Matter (PM2.5), Ozone (O3), Lead (Pb), Carbon Monoxide (CO), Ammonia (Nh3), Benzene (C6H6), Benzo-Pyrene (BaP), Arsenic (As), Nikhel (Ni) have been identified for regular monitoring at required the locations/ Industrial unit.

Among all these parameters Particulate matter is the most important pollutant present in the atmosphere. It is also called as Particulate matter Monitoring or Dust Monitoring.
As per CPCB Notification under National ambient air quality testing standards (NAAQS). These Results can be converted into the non-Technical way so that everybody can understand the level of pollution. it is called as Air Quality Index (AQI).

Ambient Air Quality Monitoring or Testing Standards

Below mentioned are National Ambient or Outdoor air quality standards (NAAQS Standards) which are used in ambient air testing.

ParametersUnitLimit
Sulphur Dioxide (SO2)mg/M3≤ 80
Oxides of Nitrogenmg/M3≤ 80
Particulate Matter PM10mg/M3≤ 100
Particulate Matter PM2.5mg/M3≤ 60
Ozone (O3)mg/M3≤ 180
Lead (Pb)mg/M3≤ 1.0
Carbon Monoxide (CO)mg/M3≤ 04
Ammonia (NH3)mg/M3≤ 400
Benzene (C6H6)mg/M3≤ 05
Benzo(a)Pyrene (BaP)mg/M3≤ 01
Arsenic (As)mg/M3≤ 06
Nickel (Ni)mg/M3≤ 20

Ambient Air Quality Testing Procedure – Duration and Frequency

The period and frequency of ambient or outdoor air quality sampling procedure should be such that statistically reliable averages can be obtained with the data i.e. 8 Hrs or 24 Hrs. National Ambient Air Quality Standards (NAAQS) states that it should be 8 Hrs monitoring or 24 Hrs as per requirement. Particulate matter levels are lower during the monsoon months due to removal by wet deposition. Air pollutants such as CO levels are higher during winter months due to lower mixing heights resulting in less volume of troposphere available for mixing and hence higher concentrations. Thus measurements should be conducted in all the seasons so that in annual average all the seasons are represented equally. In general, a minimum of 20% of the reading should be taken in each season.

Ambient Air Quality Monitoring & Testing by Perfect Pollucon Services

Ambient Air Quality Monitoring Equipment

There are many types of instruments available to monitor ambient air quality such as Respirable dust samplers, High volume air samplers, Handy dust samplers, Combined dust samplers, Portable air quality analyzers, etc. Below are the few Ambient Air Quality Monitoring instruments commonly used in the industry

High Volume Air Sampler

High Volume Air Sampler consists of the filter holding assembly, High capacity blower, U-tube Manometer, Rotameter, impingers housed in detachable fibre case, inlet filters, voltage stabilizer & Timer.

Continuous Air Quality Monitoring Station

Continuous air quality testing station or ambient air quality monitoring station constantly samples and test ambient air and provide instant reading to the nearest monitoring center. Recently the Indian government has installed more than 50 continuous air quality monitoring stations in Metro cities of India.

Ambient Air Monitoring & Testing Services Company

We offer Ambient air monitoring & Testing Services in India. Our Company is completely adept in offering customized ambient air monitoring services as per clients requirements. All this was possible because, We have highly qualified and experienced professionals who are capable of monitoring the air for toxin level, pollution degree etc.

Special features of Perfect Pollucon Services are:

  • Customized service offered
  • Excellent monitoring
  • Specialized services
  • Efficient professional team
  • Cost-effective
  • Timely Service
  • Reliable

Also, we have periodically calibrated instruments as per Pollution control board guidelines. As Environmental Consultants We offer services in Soil Analysis, Water Analysis, Environmental Monitoring, Air Quality Monitoring, Ambient Noise level Monitoring and Stack Emission Monitoring.

What are the parameters of ambient air quality?

As per CPCB parameters of air quality monitoring are Particulate Matter (PM10, PM2.5), NO2, CO, O3, SO2, NH3, Pb, As, Ni, Benzopyrene and Benzene. Mostly parameters like PM, SO2, CO, CO2, O3 and NH3 are reported.

How is ambient air quality measured?

The process of Air quality measuring is combining multiple pollutants levels present in the atmosphere and then combining their reading with their weightage assigned by pollution control boards. This gives information on air quality to the public whether air quality is either good, moderate, or hazardous.

Which is standard is used for ambient air quality monitoring?

As per CPCB notification, the fourth version of the National Ambient Air Quality Standards (NAAQS) is used for ambient air quality monitoring.

What is ambient air quality monitoring?

Ambient air quality monitoring is the process of collecting, measuring ambient air pollutants to evaluate the current status of the environment, and comparing them to standards declared by government agencies.

How do you test ambient air quality?

There are many types of ambient air quality monitoring such as high volume sampler, handheld devices, passive monitoring, continuous monitoring, active sampling using silica gel etc. Then to make understand these results for common people it is converted into Air Quality Index i.e., scoring system.

Why is ambient air quality monitoring necessary?

a. It helps us assess impacts caused by poor air quality on public health
b. It helps us to understand if air quality is within standards or not
c. To Identify polluted areas, level of pollution
d. The efficiency of industries in high polluted areas
e. Assess health issues on people due to pollution
f. To design control measures for better health of livings

If you have any questions or want to know more about our Environmental Quality Monitoring services then, please fill up below form.

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In addition, you can Also read More What is Air Quality monitoring?

11 thought on Ambient Air Quality Monitoring & Testing

  1. Amit Adhav says:
    at

    What is monitoring frequency as per norms or act

    Reply
    1. Perfect Pollucon Services says:
      at

      Hi Amit,

      The Monitoring frequency depends on the category of your company falls in. for example Red category company has to conduct monitoring more frequently as compared to green category company. it can vary from Monthly/Quarterly/half yearly etc.
      for more information you can contact us.

      Thank You,
      Perfect Pollucon Services

      Reply
  2. neelima says:
    at

    what is used for PM2.5 monitoring

    Reply
    1. Perfect Pollucon Services says:
      at

      Hi Neelima,

      We use high volume sampler as well as digital smart high accuracy sampler to monitor PM 2.5.

      Thanks

      Reply
  3. Vidhya Sivakumar says:
    at

    We are residents living in Lodha New Cuffe Parade in wadala and looking to hire a consultant /agency to monitor air quality in our area and give us a strong report that we can take it to the right authorities for taking corrective action. – move RCF ans other refineries out of wadala.

    Reply
    1. Perfect Pollucon Services says:
      at

      Thank you Vidhya for your response.

      Request you to call on 9930180059 for faster response.

      Thanks You,
      Perfect Pollucon Team

      Reply
  4. RAM PRASAD KUSHWAHA says:
    at

    What is different between the pm 10 and pm 2.5

    Reply
    1. Perfect Pollucon Services says:
      at

      Hi Ram,
      PM10 has a size of 10 micrometres whereas PM2.5 has a size of 2.5 micrometres. A human hair is can be of 100 micrometres, so around 40 PM2.5 could be placed on its width

      Thanks,
      Perfect Pollucon Services Team

      Reply
  5. Nilesh Makwana says:
    at

    Why 8 hour and 24 hour for AAQM

    Reply
  6. roy says:
    at

    what are the basis in monitoring air parameters

    Reply
    1. Perfect Pollucon Services says:
      at

      Hi Roy,

      Different pollutants affect human and environment in different ways. To control impact of those pollutants on our life Pollution control boards has defined certain procedures to monitor all pollutants. That is the basis of Air Parameters monitoring.

      Thank you,
      PPS Team

      Reply

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