Grid based air detection systemInstallation preparation:
1. Soil ground. A 50 * 50 * 50cm soil pit needs to be excavated, with embedded parts placed in the center, and concrete poured (flat level). The top of the embedded parts should be 5cm above the ground. When pouring concrete, the threads of the embedded parts should be wrapped and solidified for 7-10 days before installing the equipment. Preparation of materials and tools: shovel, tap water, concrete, trowel, several boards, medium cross screwdriver, level ruler, open-end wrench, pliers

2Hard ground (thickness not less than 10cm). According to the installation holes on the bracket base, drill four circular holes with a diameter of 18mm and a depth of 120mm on the hard ground, insert M14 expansion bolts, and then directly install the equipment.Material and tool preparation: drilling hammer, hammer, medium Phillips screwdriver, level ruler, adjustable wrench, pliers

Grid based air detection system

Investigation of Air Pollution Sources

(1) Object of Investigation and Analysis of Air Pollution Sources

The objects and contents of pollution source investigation should comply with the corresponding evaluation level regulations. Focus on whether the current monitoring values can reflect changes in the evaluation scope of pollution sources, such as investigations that include all replaced pollution sources, as well as other ongoing projects related to the discharge of major pollutants in the evaluation area, and proposed projects with approved environmental impact assessment documents.

For first and second level evaluation projects, all pollution sources of the project should be investigated and analyzed (including new and old pollution sources for renovation and expansion projects), other ongoing projects related to project emissions within the evaluation scope, and undeveloped projects with approved environmental impact assessment documents. If there are regional alternative solutions, all proposed alternative pollution sources within the evaluation scope should also be investigated. For third level evaluation projects, only the pollution sources of the project can be investigated and analyzed.

Installation preparation:

1. Soil ground. A 50 * 50 * 50cm soil pit needs to be excavated, with embedded parts placed in the center, and concrete poured (flat level). The top of the embedded parts should be 5cm above the ground. When pouring concrete, the threads of the embedded parts should be wrapped and solidified for 7-10 days before installing the equipment.

Preparation of materials and tools: shovel, tap water, concrete, trowel, several boards, medium cross screwdriver, level ruler, open-end wrench, pliers

2. Hard ground (thickness not less than 10cm). According to the installation holes on the bracket base, drill four circular holes with a diameter of 18mm and a depth of 120mm on the hard ground, insert M14 expansion bolts, and then directly install the equipment.

Material and tool preparation: drilling hammer, hammer, medium Phillips screwdriver, level ruler, adjustable wrench, pliers