Heavy metals - Nickel (median values)
This API provides access to a WMS layer showing median concentration values of nickel, a heavy metal, in marine environments. It is published by HCMR (Hellenic Centre for Marine Research) as part of the EMODnet shared geospatial data infrastructure. The data is presented as a map service (WMS) covering national marine waters of Greece, allowing visualization of nickel pollution levels. It can be used for environmental monitoring, marine pollution assessment, and research on heavy metal contamination in coastal and marine ecosystems.”}Heavy metals - Nickel (median values)
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data schema (6 fields)
Click a field to see example values.
| Field | Type | Description |
|---|---|---|
| the_geomThe geom | geometry | Geometric location of the monitoring point.Geometric location of the monitoring point. |
| LongitudeLongitude | double | Longitude coordinate of the sampling location.Longitude coordinate of the sampling location. |
| LatitudeLatitude | double | Latitude coordinate of the sampling location.Latitude coordinate of the sampling location. |
| Median | double | Median measured nickel concentration at the location.Median measured nickel concentration at the location. |
| matrix | string | Environmental medium sampled, such as water.Environmental medium sampled, such as water. |
| median_valuesMedian values | double | Median value of nickel measurements recorded.Median value of nickel measurements recorded. |
Schema captured from wfs 1 month ago.
Query the data
Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.
Sample data (3 records)
| Longitude | Latitude | Median | matrix |
|---|---|---|---|
| -8.936 | 41.745 | 0.27 | Water |
| -9.021 | 41.746 | 0.317 | Water |
| -9.052 | 41.642 | 0.389 | Water |
Live sample captured at profiling time — values may have changed upstream.
Verification Status
Using the API
Query examples
curl -s 'https://geoserver.hcmr.gr/geoserver/EMODNET_SHARED/wfs?service=WFS&version=2.0.0&request=GetCapabilities#nickel_concentration_median_values' -H 'Accept: application/json'List the feature types (layers) and supported operations.
Dataset
Volume & freshness
License
No license declared upstream.
Machine-readable & source
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