2.2 Continuous monitoring of stationary source

Air Pollution Continuous Monitoring Technology in Japan
Outline about air pollution continuous monitoring

2. The purpose of continuous monitoring

2.2. Continuous monitoring of stationary source

Continuous monitoring of stationary source is defined as continuously measuring of emission of pollution from factories. The Air Pollution Control Law does not have regulations to establish stationary source monitoring station. In general, on-site investigation is made by local governments to check the status of emission of pollution from factories and to determine if the concentration meets emission standards for pollutants. However some local governments, where air pollution problems are serious, make pollution-control agreements with some factories and businesses to continuously monitor the concentration and volume of pollutants emitted from stacks by above-mentioned system. This is done because factories and businesses with large volume of emission gas impact the human living environment .

The purposes of establishing monitoring stations for stationary source are as follows:

(1) To check the hourly values with regard to various emission standards such as total mass emission control standards for SOx and NOx in accordance with Article 5-2 of the Air Pollution Control Law.
(2) To effectively monitor the compliance of a factory in reducing its emission volume in an emergency.
(3) To promote self-management of emission by a factory.
Continuous monitoring of stationary source is effective in managing its emission from stationary source with large emission volume.