Improving chimney emissions monitoring capacity in Vietnam

The National Monitoring Center is drafting a circular on emissions monitoring, whereby methods, standard processes and quality assurance, quality control will be applied across the country in the field of monitoring. emissions.

In particular, through the technical assistance of the Vietnam Provincial Environmental Management Project (VPEG), funded by the Government of Canada, will help to create a favorable policy and legal environment for developing chimney emissions monitoring capacity in Vietnam.

Monitoring chimney emissions is a complex technical activity that requires a lot of equipment and knowledge and skills to work directly at a high level.

For successful monitoring, it must work closely with the plant where the monitoring is conducted, so that the plant installs the chimney sampling port to ensure safety and operating conditions of representative sampling process.

In addition, must know the knowledge of the plant operation process and some operating parameters, which ensure that sampling brings reliable and meaningful data.

In fact, the monitoring of chimney emissions of the Departments of Natural Resources and Environment in provinces and cities in Vietnam is still limited, only measuring 'quickly' polluting gases such as NOx, SO ₂ and CO by handheld analyzer. These measurements are inconsistent with standard processes, as well as common practices applied in the world.

Therefore, the Provincial Project on State Management of Environment in Vietnam has developed a training course on 'Introducing chimney emissions monitoring techniques' for staff of the Hanoi Department of Natural Resources and Environment. , Da Nang, Binh Duong, Bac Ninh, Long An, Hai Duong, Quang Ngai and Soc Trang. Thereby introducing the basic monitoring and inspection methods widely applied in the world, such as the US Environmental Protection Agency's methods 1-4, but there are some adjustments to suit the lawsuit in Vietnam.

Typically, the Department of Natural Resources and Environment of Hai Duong Province and Hanoi City have bought some aerodynamic sampling devices (method of sampling dust from chimney emissions).

Hai Duong Department of Natural Resources and Environment alone has been trained by Canadian experts to develop direct working capacity, by practicing sampling at a local steel factory.

This practice demonstrates the need to build resolving capacity, troubleshooting when unexpected problems occur during sampling, the preparation of a favorable sampling point is important to reduce less difficult for waste gas sampling.