Air Quality Monitoring is the systematic, long-term assessment of pollutant levels by measuring the quantity and types of certain pollutants in the surrounding, outdoor air. Air quality is measured with Air Quality Index(AQI). The AQI is showing changes in amount of pollution in air. The Air Quality Monitoring System is a facility to measure wind speed, direction, other weather parameters, concentration of air pollutants and particulate matters continuously all year round. Mobile AQMS can also be customized to monitor multiple sites via one system. The measured data can be published through internet for easy public access to arise awareness on current air pollution.

Stack monitoring is referred to the air monitoring of an emission point. Such monitoring is carried out on boiler stacks ,exhausts from printers, discharges from bag filters, thermal oxidisers and is performed on a regular basis. exhausts from printers, discharges from bag filters, thermal oxidisers and is performed on a regular basis.
Stacks from boilers and industrial processes will carry pollutants such as SOx, NOx, particles, solvents and other dusts and gases. These can have a detrimental effect on local air quality and for this reason such emissions are often regulated. Typically this regulation requires measurement of the concentration of these pollutants on a regular basis, often referred to as periodic stack emission monitoring. 

Employers are increasingly concerned about issues related to violence in the workplace, identity and property theft, lowered productivity, and on-the-job accidents and injuries. Coupled with the ever-increasing costs of litigation, employers must find appropriate ways to minimize these risks. As a result, many employers now monitor employees at work to prevent injuries, misconduct and other types of loss.
The role of the human resource professional in managing workplace privacy is to facilitate the adoption of reasonable and effective practices that protect employees while minimizing the risk of employer liability.

Water sampling is very important for the correct outcome of water analysis. Using the correct technique and the appropriate glassware or plasticware is essential for the correct outcome.
There are two types of water sampling strategies regarding the time frame when the samples are collected:

• Discrete Sample: They are appropriate when the sample composition is not time dependent.
• Composite Sample: They Consists of a series of smaller samples collected at a predetermined time or after predetermined flow 

Soil testing is an essential component of soil resource management. Each sample collected must be a true representative of the area being sampled. Utility of the results obtained from the laboratory analysis depends on the sampling precision. Hence, collection of large number of samples is advisable so that sample of desired size can be obtained by sub-sampling. In general, sampling is done at the rate of one sample for every two hectare area.
Soil sampling and extraction techniques are widely used to obtain samples for further analysis using a range of sampling designs.

Ventilation survey plays very vital role in understanding indoor quality in industries, homes, schools or offices and based on Ventilation survey reports steps can be taken to repair ventilation system.
Research shows that right indoor air quality improves productivity of employees. It reduces accidents, absenteeism and chemical exposure of employees resulting in improving profit for business.
Natural ventilation through open window is effective strategy to maintain clean air and temperature in some portions of cooling season. To calculate energy saved in buildings through natural ventilation one has to calculate air flow.