Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network — Public Data APIs

Open APIs related to Water Quality Inspection & Measurement Network, within Environment & Weather › Water and Sewage, and Water Quality on the Public Data Portal. 21 REST APIs, sorted by most requested. Click a name to go to its application page on the Public Data Portal. Search & filter on the main explorer.

  1. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Water Quality DB

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2023-05-19
    1,350 requests

    (Collection method) This data is collected through the Water Environment Information System in accordance with the Water Environment Monitoring Network Operation Plan, Algae Warning Operation Manual, Article 22 of the Framework Act on Environmental Policy, Articles 9, 16, 22, and 23 of the Water Quality and Aquatic Ecosystem Conservation Act, Article 16-2 of the Act (Investigation on the inflow of radioactive substances, etc.), and Article 26-4 of the Enforcement Rule. (Data limitations)…

    RESTAuto-approvedNo restriction
  2. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Algae warning system inquiry service

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2024-03-06
    143 requests

    Provides water quality and algae data for rivers and lakes targeted by the algae warning system. Water quality: Water temperature, pH, transparency, turbidity, harmful blue-green algae cell count, chlorophyll-a, dominant species

    RESTAuto-approvedAttribution required
  3. Ministry of the Interior and Safety – Resource and Environment: Water Pollution Source Installation Facility (Other) Inquiry Service

    Ministry of the Interior and Safety · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2026-04-16
    131 requests

    The resource and environment water pollution source installation facility (other) data is managed as point pollution sources (discharge sources that discharge water pollutants to a certain point through conduits, waterways, etc. as wastewater discharge facilities, sewage generation facilities, livestock pens, etc.) and non-point pollution sources (cities, roads, agricultural land, mountainous areas, construction sites, etc. that discharge water pollutants from unspecified locations unspecifically) that are not managed as…

    RESTAuto-approvedNo restriction
  4. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Statistics Service by River

    National Institute of Environmental Research, Ministry of Climate, Energy and Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-26
    129 requests

    Data confirmed by the National Institute of Environmental Research by comparing and reviewing statistical data based on data submitted by all metropolitan local governments (17) and basic local governments (230) annually pursuant to Article 23 of the Water Environment Conservation Act and Article 32 of the Enforcement Rule of the same Act. Survey items include living sector, livestock sector, industrial sector, land sector (Ministry of Land data), aquaculture sector, landfill sector, environmental infrastructure, and other water pollution sources…

    RESTAuto-approvedNo restriction
  5. National Institute of Environmental Research under the Ministry of Climate, Energy and Environment – Regional Statistical Service

    National Institute of Environmental Research under the Ministry of Climate, Energy and Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2024-05-31
    119 requests

    Data confirmed after comparison and review with statistical data by the National Institute of Environmental Research based on data submitted annually by national metropolitan local governments (17) and basic local governments (230). Survey items include 8 items: living sector, livestock sector, industrial sector, land sector (Ministry of Land, Infrastructure and Transport data), aquaculture sector, landfill sector, basic environmental facilities, and other water pollution sources.

    RESTAuto-approvedNo restriction
  6. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Other water pollutant information provision service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-26
    116 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of its Enforcement Rule, city/do governors investigate the types of pollutants and generation amounts of pollutants in their jurisdiction every year, investigating data on a total of 8 pollutant types including residential, livestock, industrial, aquaculture, land, landfill, basic environmental facilities, and other water pollutants. Other water pollutants are specified in Attached Table 1 of the Enforcement Rule of the Water Environment Conservation Act.…

    RESTAuto-approvedNo restriction
  7. Busan Metropolitan City – River Water Quality (Automatic Measurement Network) Information

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-08-07
    101 requests

    The automatic river water quality measurement network information operated by the Busan Metropolitan City Institute of Health and Environment measures real-time water quality for major rivers (13 locations across 8 rivers) within Busan jurisdiction and provides it to citizens in real time. Real-time water quality measurement items consist of a total of 7 items (water temperature, hydrogen ion concentration, dissolved oxygen, turbidity, electrical conductivity, salinity, total dissolved solids)…

    RESTAuto-approvedNo restriction
  8. K-water – Multi-Purpose Dam Water Quality Information

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-08-22
    100 requests

    ㅁ How to use: Search ""Multi-purpose dam water quality information"" in the search bar -> Select ""Sheet"" or ""API"" label menu -> Select ""Multi-purpose dam effluent water quality inquiry service (DATA inquiry)"" item from the service list ㅁ Provides water quality information items for multi-purpose dams managed by K-water ㅁ Provided items * Elevation depth, measurement time, measurement depth…

    RESTAuto-approvedNo restriction
  9. Busan Metropolitan City – Neighborhood Water Quality Information Inquiry

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-08-28
    93 requests

    Water quality refers to a comprehensive evaluation of the chemical, physical, and biological properties of water. Simply put, it is an indicator of how clean and safe the water is to use. Water quality grades are Class 1 for drinking water, Class 2 for domestic use, Class 3 for industrial use, Class 4 for heavily polluted water, and Class 5 for severely polluted water.…

    RESTAuto-approvedNo restriction
  10. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Environmental Impact Assessment Water Quality Information Service

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-07-22
    55 requests

    This service provides information on water quality survey overviews, surveys, and prediction attribute information of environmental impact assessment projects of the National Institute of Environmental Research of the Ministry of Environment, as well as spatial information (survey points). Survey attributes include survey round, survey point, address, coordinates, chlorophyll-a (㎎/ℓ), water temperature (°C), pH, dissolved oxygen (㎎/ℓ), suspended solids (㎎/ℓ), chemical…

    RESTAuto-approvedNo restriction
  11. Korea Coal Corporation – Water Quality Data Around Coal Mines

    Korea Coal Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2020-06-26
    52 requests

    Service to provide water pollution inquiries for a total of 6 locations around coal mines (Jangseong, Dogye, and Hwasun mines). Provided items: suspended solids coefficient (SS, mg/L) for each location.

    RESTReview requiredNo restriction
  12. North Chungcheong Province – Water Quality Measurement Network Operation Results

    North Chungcheong Province · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-10
    51 requests

    An Open API that allows querying operation results collected from river water quality measurement networks in North Chungcheong Province based on station name, water temperature, category, and measurement results. The water quality state actually measured at each survey station can be checked through input parameters. The provided data includes water temperature and measured values of specific water quality items to provide basic environmental characteristics of rivers.…

    RESTAuto-approvedNo restriction
  13. Chungcheongbuk-do – Water Quality Monitoring Network Operation Monthly Average Measurement Results

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-10
    47 requests

    An Open API that allows users to query average measurement values according to variables such as year, status, description, classification, and river based on the operation results of the Chungcheongbuk-do water quality monitoring network, systematically checking how water quality items in each water system changed on an annual basis. Average data not only reflects short-term fluctuations but also seasonal changes and specific period changes,…

    RESTAuto-approvedNo restriction
  14. Chungcheongbuk-do – Environmental Field Information Water Environment River Water Quality Measurement Points

    North Chungcheong Province · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-09
    45 requests

    An Open API that allows users to query river water quality measurement points operated to understand the water quality status of rivers within Chungcheongbuk-do based on city/county, river name, and sampling point. This data is utilized as core foundational material for water environment management, such as monitoring changes in river water quality, tracking pollution sources, and evaluating aquatic ecosystem health, and systematically provides regular water quality survey points.…

    RESTAuto-approvedNo restriction
  15. Chungcheongbuk-do – Water Quality Monitoring Network Operation Result Survey Point Status

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-09
    43 requests

    An Open API that allows inquiring the status of survey points operated in the Chungcheongbuk-do water quality monitoring network based on water system, point name, point number, survey point, and classification criteria, allowing systematic confirmation of locations and point characteristics where water quality surveys are conducted through input parameters. This data is set for each water system such as rivers, lakes, and groundwater.…

    RESTAuto-approvedNo restriction
  16. Chungcheongbuk-do – Water Quality Monitoring Network Operation Result Survey Items

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-09
    43 requests

    An Open API that allows inquiring survey items of the water quality monitoring network operated by Chungcheongbuk-do based on classification, survey item name, and survey timing. This data clearly presents survey items for grasping the water quality status of various water systems such as rivers, lakes, and groundwater, thereby providing core information on the composition and operation method of the water pollution monitoring system.…

    RESTAuto-approvedNo restriction
  17. Daegu Public Facilities Management Corporation – Food Waste Status GW

    Daegu Public Facilities Management Corporation · Daegu · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2026-07-27
    43 requests

    The Daegu Public Facilities Management Corporation manages the entire process of food waste from inflow to final treatment with precise data. It establishes a transparent administrative system by real-time weighing of inbound volumes and vehicle information of collection vehicles by district and county, through which seasonal occurrence trends are analyzed. In addition, it monitors process quantities at each treatment stage such as shredding and dehydration…

    RESTReview requiredNo restriction
  18. Chungcheongbuk-do – Local river statistical information

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-10
    39 requests

    Chungcheongbuk-do local river statistical information is an Open API that provides regional names, water sampling point numbers, river names, and changes compared to the previous month. It is statistical usable data that can grasp the variability of river water quality indicators on a monthly basis. By providing increase and decrease amounts compared to the previous month, this data shows whether the water quality environment at a specific river point is improving or worsening.…

    RESTAuto-approvedNo restriction
  19. Seo-gu, Daegu – Air and Water Quality Environmental Pollution Emitting Business Status

    Seo-gu · Daegu Seo-gu · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-21
    34 requests

    Through input parameters, this provides business name, address, and industry item information on the status of air and water pollution emitting businesses in Seo-gu, Daegu. This data is status material including the names, addresses, and industries of businesses emitting air and water-related pollutants within Seo-gu, Daegu, encompassing hospitals, gas stations, car washes, textile processing, cutting…

    RESTAuto-approvedNo restriction
  20. Jeonbuk State – Monthly River Water Quality Measurement Status Inquiry Service

    Jeonbuk State · Jeonbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-06-19
    33 requests

    The Jeonbuk State Monthly River Water Quality Measurement Status Inquiry Service provides monthly water quality data for major rivers within Jeonbuk State. This data is used as basic material for understanding the degree of river pollution and establishing policies for water quality conservation and management. This data includes year, month, city/province name, measurement station name, water depth, water temperature, hydrogen ion concentration,…

    RESTAuto-approvedNo restriction
  21. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Environmental Impact Assessment Pesticide Post-Survey Information Service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-26
    28 requests

    A function to query pesticide investigation information attributes (investigation point name, coordinates, address, survey start date, survey end date, survey information such as acephate, dicloflunid, etc.) investigated based on business codes and response types for environmental impact assessment projects by the National Institute of Environmental Research of the Ministry of Environment, as well as features of water quality pesticide survey points based on spatial coordinates (coordinate system, response format, and search range).…

    RESTAuto-approvedNo restriction
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