In the past five years, Luogang District, Guangzhou Development Zone, Guangdong Province has persisted in implementing the concept of “environmental protection by construction and environment for development”. With the help of advanced information technology, it has constructed a special “digital environmental protection” system, which has found a good solution to the problem of environmental protection in local areas. square.

5 subsystems build monitoring network

It is understood that the "digital environmental protection" system in the Luogang District of Guangzhou Development Zone was approved in early 2007 and the total investment was 28 million yuan. It was completed and accepted last year. The system has five subsystems, including a standardized central laboratory, a full-coverage of environmental protection electronic maps, a modern integrated environmental management system, a batch of on-line monitoring systems, and a set of environmental emergency command systems.

For the purpose of building an advanced environmental monitoring and early warning system, the standardization center laboratory has purchased a number of advanced instruments and equipment such as GC/MS, atomic absorption instruments, and meteorological chromatographs for the construction of central laboratory monitoring capabilities. The room has the ability to monitor more than 100 environmental indicators such as surface water environment, ambient air quality and noise environment.

The full coverage of the environmental electronic map is based on digital orthophoto data, including high-resolution satellite imagery, aerospace imagery, and DEM data. It unifies the mathematical basis of spatial data and forms a unified multi-scale 3D geospatial information platform. The spatial data of different scales are loaded so that the environmental information of the entire region can be embodied on this environmental electronic map, and the visual monitoring and data synchronization monitoring of key pollution sources can be realized.

The successful application of the environmental protection electronic map also plays a major role in the timely detection and intelligent inquiry of environmental issues. The background information of any pollution source includes the start of project initiation, project construction, project acceptance, daily monitoring, and online monitoring. You can always locate the query by clicking on the name of the pollution source. When environmental law enforcement personnel carry out on-site law enforcement, as long as the computer mouse is clicked on easily, all environmental protection materials of the company can be immediately called out, which greatly improves the efficiency of law enforcement.

The modern integrated environmental management system covers five major business areas: administrative management, environmental planning, environmental quality, pollution control, and environmental safety. More than 30 business function modules and a modern environmental monitoring center have been built, resulting in total emission reduction and digital environmental impact assessment. , Water Environment Management, Emergency Management, Data Center, and a number of unique application systems have enabled the full integration of business and data and information sharing.

The on-line monitoring system has installed 45 sets of on-line monitoring equipment for waste water, waste gas and atmosphere, built 130 video surveillance sites, and provided 38 key pollution source companies and 4 rivers in the region (Ugyong, Nangang River, Hengjiaohe and Yonghe River). ) Real-time online video monitoring of vehicle exhaust and pumping stations at sections and important sections.

In terms of environmental emergency, an advanced emergency command system integrating forecasting, monitoring, monitoring, and early warning was established, and emergency mobile command vehicles, environmental emergency monitoring vehicles, vehicle exhaust gas telemetry vehicles, and portable gas-mass spectrometers were purchased. A number of emergency environmental monitoring instruments, such as the Su-Yan can system, a portable mercury analyzer, a vehicle-mounted cyanide tester, and a comprehensive toxicity tester, have provided important protection for the implementation of pollution accident emergency rescue and daily environmental monitoring.

Detailed real-time data to solve environmental problems

According to the relevant person in charge of the Luogang District of Guangzhou Development Zone, the “digital environmental protection” system is based on the management of pollution sources, the data center as the core, and the geographic information system as the basis for the full integration of business and data, and forms three integrated systems. Firstly, it integrates and integrates the five major business areas of environmental protection administration, environmental planning, environmental quality, pollution control, and environmental safety. Second, it integrates the latest research achievements of national research institutes, such as total control, scientific environmental assessment, and water quality model; Third, it integrates modern information applications such as images, video, 3D, Internet of Things, maps, and models. In addition to the realization of the pollution source database, resource sharing and real-time monitoring of key pollution sources and other traditional features.

The "Digital Environmental Protection" system has now formed more than 2,000 corporate sources of dynamic pollution data, covering the entire life cycle of corporate environmental management data, environmental approvals, environmental monitoring, environmental monitoring to achieve the same platform calls and data sharing for environmental management and decision-making services support. The real-time monitoring of pollutant data and images is conducive to the timely mastering of the operation status of the company's sewage facilities, effectively preventing the company from stealing, draining and discharging, and making environmental law enforcement available.

A total of 6 atmospheric substations in the 5th Street, 1st Town, Luogang District, Guangzhou Development Zone rely on the “digital environmental protection” system to achieve full networking. In addition to the national requirements for the monitoring of inhalable particulate matter, sulfur dioxide, and nitrogen dioxide, but also for carbon monoxide and ozone 24-hour real-time monitoring was conducted to form an urban-rural integrated ambient air quality monitoring and early warning system. The on-line monitoring data truly reflects the effectiveness of the total emission reduction work, provides technical support and decision-making basis for grasping the status quo of the environmental quality of the jurisdiction and its changing trends and emission status of pollution sources, and provides real and reliable environmental monitoring information for the public to understand the environmental status.

Since 2008, the over-standard sewage discharge rate of enterprises in Luogang District, Guangzhou Development Zone has been declining year by year, and 100% of the wastewater has been discharged; the discharge of chemical oxygen demand shows a trend of “increasing and decreasing” (increasing the discharge of wastewater). , chemical oxygen demand emissions decreased). Last year, the air quality rate reached 99.5%. The emergency command system, environmental emergency monitoring vehicle and monitoring equipment integrating forecasting, monitoring, and monitoring were involved in the “13.13 district explosion accident” emergency incident in 2008 and “the people in a certain district complained of odor and nuisance” in the past year. The demolition plays an important role in providing technical support and decision-making basis for the implementation of pollution accident emergency rescue and government decision-making.