As an important source of drinking water and an integral part of the ecosystem, the protection of groundwater and the prevention and control of pollution are of paramount importance.In order to effectively monitor groundwater quality conditions, it is becoming increasingly important to use advanced water quality measurement instruments to carry out rapid and accurate tests in the field.This paper will detail the main test indicators and standards followed by the water quality meters used in groundwater sampling.
I. Role of field water quality meters for groundwater sampling
A water quality meter is a device that can quickly and accurately measure a wide range of physical and chemical parameters in water.Not only does it simplify the traditional laboratory analysis process, it also provides instant data at the sampling site, which is critical for timely detection and response to potential contamination events.In addition, the design of the portable water quality tester makes it ideally suited for field operations and can be adapted to a variety of complex environmental conditions.
Ⅱ.groundwater sampling field water quality tester main testing indicators
pH: This is a basic indicator for assessing the acidity or alkalinity of groundwater, and is important for determining the corrosiveness of the water to pipeline materials and the environment suitable for biological survival.
Conductivity: Reflects the total amount of dissolved solids in the water; high conductivity may indicate high salt or other ion concentrations, affecting the flavour and suitability of the water.
Oxidation Reduction Potential (ORP): Indicates the oxidising or reducing nature of water and is an indicator for assessing the self-purification capacity of a water body and determining the treatment needs for specific pollutants.
Dissolved Oxygen (DO): Key indicator to assess the amount of oxygen in the water column, which is critical to the health of aquatic ecosystems.
Turbidity: A measure of the amount of suspended particles in the water, which affects the clarity and safety of the water.
III. Standards relating to water quality measuring instruments in groundwater sampling sites
A range of national and international standards need to be followed during groundwater sampling and testing to ensure the accuracy and reliability of the data.For example, China's national environmental protection standard HJ 164-2020 Technical Specification for Groundwater Environmental Monitoring provides detailed technical guidance and requirements, including the construction and management of monitoring wells, sample collection, analysis methods and data processing.In addition, the specific analysing instruments used, such as portable pH meters and dissolved oxygen meters, also need to comply with the appropriate national metrological calibration standards to ensure the accuracy and consistency of the measuring tools. Portable PH meter, resolving power of not more than 0.1; portable redox potential tester, resolving power of not more than 1mV; portable conductivity tester, resolving power of not more than 0.0luS/cm; portable turbidity tester, resolving power of not more than 1NTU; portable water temperature meter, resolving power of not more than 0.1 ℃.
The portable groundwater sampling field water quality tester produced by Erun Environmental Protection is a high-tech equipment integrating sampling and analysis.Its lightweight design makes it easy to carry to a variety of complex environments for rapid on-site water quality monitoring.The instrument uses advanced sensor technology to accurately determine a number of water quality parameters, such as pH, ORP, turbidity, conductivity, etc., providing instant data support for environmental monitoring, hydrological research and emergency response.Easy to operate, user-friendly interface, even for non-professionals.Its high precision and stability ensure the reliability and accuracy of water quality data, making it an ideal tool for groundwater protection and management.
Above is the groundwater sampling field water quality tester testing indicators and standards analysis of all content.Through these strict standards and precise instruments, we are able to effectively monitor and protect groundwater resources to ensure their long-term sustainable use.
