@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/60c97996-780c-425d-8e64-fe9c32fbb57e> a dcat:Dataset ;
    dct:description """Continuous measurements of PM2.5 and nitrogen dioxide using low cost sensors and citizen science. 

This dataset is associated with the following publication:
Reece, S., R. Williams, M. Colon, D. Southgate, E. Huertas, M. OShea, A. Iglesias, and P. Sheridan. Spatial-Temporal Analysis of PM2.5 and NO2 Concentrations Collected Using Low-Cost Sensors in Peñuelas, Puerto Rico.   Sensors. MDPI AG, Basel,  SWITZERLAND, 18(12): 4314, (2018).""" ;
    dct:identifier <https://doi.org/10.23719/1503096> ;
    dct:issued "2025-11-22T03:34:29.073218"^^xsd:dateTime ;
    dct:modified "2018-10-05"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "PM2.5 and Nitrogen Dioxide Concentrations in Penuelas, Puerto Rico" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Ronald Williams" ;
            vcard:hasEmail <mailto:williams.ronald@epa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/60c97996-780c-425d-8e64-fe9c32fbb57e/resource/7749c3ea-f3d4-439d-a183-14c769de0b7c>,
        <https://data.amerigeoss.org/dataset/60c97996-780c-425d-8e64-fe9c32fbb57e/resource/a91bbd19-6305-4e66-ba16-a82012d3453f> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "citizen-science",
        "ckan",
        "geo",
        "geoss",
        "low-cost-sensor",
        "national",
        "nitrogen-dioxide",
        "north-america",
        "particulate-matter",
        "sensor-performance",
        "united-states" .

<https://data.amerigeoss.org/dataset/60c97996-780c-425d-8e64-fe9c32fbb57e/resource/7749c3ea-f3d4-439d-a183-14c769de0b7c> a dcat:Distribution ;
    dct:description "Puerto_Rico_Temporal_Spatial_Database.xlsx" ;
    dct:format "XLS" ;
    dct:issued "2020-11-12T13:45:24.022558"^^xsd:dateTime ;
    dct:modified "2025-11-22T03:34:29.065028"^^xsd:dateTime ;
    dct:title "Puerto_Rico_Temporal_Spatial_Database.xlsx" ;
    dcat:accessURL <https://pasteur.epa.gov/uploads/10.23719/1503096/Puerto_Rico_Temporal_Spatial_Database.xlsx> ;
    dcat:mediaType "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" .

<https://data.amerigeoss.org/dataset/60c97996-780c-425d-8e64-fe9c32fbb57e/resource/a91bbd19-6305-4e66-ba16-a82012d3453f> a dcat:Distribution ;
    dct:description "Puerto_Rico_Temporal_Spatial_Database_Dictionary.xlsx" ;
    dct:format "XLS" ;
    dct:issued "2020-11-12T13:45:24.022565"^^xsd:dateTime ;
    dct:modified "2025-11-22T03:34:29.065442"^^xsd:dateTime ;
    dct:title "Puerto_Rico_Temporal_Spatial_Database_Dictionary.xlsx" ;
    dcat:accessURL <https://pasteur.epa.gov/uploads/10.23719/1503096/Puerto_Rico_Temporal_Spatial_Database_Dictionary.xlsx> ;
    dcat:mediaType "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .