15km Mesh PM2.5 Index
GET
/api/v1/pm25
Forecast Japan
Access PM2.5 air quality index for specified latitude and longitude coordinates, calculated with 15km grid resolution. The specified latitude and longitude must be within Japan. The PM2.5 index includes hourly information for approximately 2 days.
Data Coverage
Land areas of Japan
パラメータ
クエリパラメータ
lat*
Latitude
型number
必須例
35.651377format
floatlon*
Longitude
型number
必須例
140.041161format
floatレスポンス
15km grid-based PM2.5 index data
application/json
JSON
{
"requestId": "3909775c-5d0f-4e96-8e4f-7d3f263e2056",
"wxdata": [
{
"lat": 35.651377,
"lon": 140.041161,
"data": [
{
"date": "2025-04-09T10:00:00+09:00",
"pm25": 0.3,
"pm25idx": 1
}
]
}
]
}