ASVA powerful tool for monitoring and tracing heavy metals in environmental air and smoke

AirMetalEnvironmental Air Heavy Metal Online Monitoring System

1System purpose

AirMetalThe online monitoring system for heavy metals in environmental air must be able to meet the requirements of automatic, continuous, and stable environmental air monitoring; It has basic functions such as automatic transmission of various data (monitoring data, system equipment operating parameters, system equipment calibration, maintenance, and system control related data), remote automatic and manual control, diagnosis, on-site manual control, fault display, alarm, etc; Metal sensitive sources can be used for analysis; The analyzer automatically extracts samples,Quantify the concentration of lead in the atmosphere,Avoid harm to personnel and the environment; Suitable for both fixed installation and as a mobile monitoring platform.

2、 Working principle and detection method

1、 The analyzer adopts the principle of anodic stripping voltammetry detection, which can detectAs、Cd、Cu、Hg、Pb、ZnWait.

2、 The air sample is automatically collected through a dedicated sample filter. The collected lead in the air is extracted from the filter and concentrated into a specially designed aqueous phase for electrochemical determination of the lead content in each filter.

3、 For the analysis of ambient air, a comprehensive air flow meter can determine the volume of the air sample, and the results are based onμg/m³Recorded. The system can detect the presence of air in the environmentPbThe detection line of the instrument is less than0.5μg/m³.

3、 Composition of testing system

1、 Online heavy metal analyzer host, air and flue gas sampler, cutter

2、 Automatic sampling, filtration and enrichment system for ambient air or smoke

3、 Electrode group and its automatic cleaning system instrument

4、 Random handheld calibration comparison instrument

5、 Data storage, processing, and display terminals

6、 Data processing and transmission system

4、 Main technical indicators

1、 Measurement range:0.05μg / m³ to 500μg / m³；

2、 Detection limit:0.5μg / m³；

3、 Sampling time: Air sample sampling time15-1200minute(User Selectable)；

4、 Detection and analysis time: less than10minute;

5、 Detection interval:15Minutes to arrive240Minutes optional;

6、 Sampling volume: up to3 m³The sampling flow rate is usually2-6 L/minUser adjustable;

7、 Calibration stability check cycle: check once/Analyze each sample;

8、 Electrode maintenance and calibration cycle: once every six months, or depending on the frequency of testing or electrode usage time;

9、 Zero point automatic calibration and electrode automatic cleaning during each detection;

10The comparison error between the test results and the atomic absorption analyzer is less than15 %；

11Installation method: Cabinet style installation inside the station building, requiring rain and lightning protection, and equipped with air conditioning;

12Required operating environment: The ambient temperature is controlled within40℃following;

13Power supply:120VAC-240VAC/60Hz；

14Input/Output:RS232Serial port,ModbusCommunication protocol.

5、 Application Fields

1、AirMetalThe online monitoring system for heavy metals in ambient air is a powerful and effective tool for accurately identifying and tracing the sources of heavy metals that diffuse in the air;

2、 This on-site heavy metal analysis laboratory can be used for fixed installation or as a mobile monitoring platform for vehicles;

3、 Application in identifying heavy metal pollution and diffusion in complex urban air environments“hotspot”；

4、 Real time identification of the correlation between heavy metal element concentration and wind speed and direction, combined with model analysis, is a powerful tool for heavy metal traceability monitoring.