Melualueet 2017 15 mvyoh 1 1 raitio Lden 4 m

Column	Type	Comment
id	int	Data source did not contain a description for id. Column id has 1669 rows, out of which 0 are empty, making the null percent 0.00. The column is fully populated. Minimum value is 51887 and maximum value is 53555.
db_lo	float	Data source did not contain a description for db_lo. Column db_lo has 1669 rows, out of which 0 are empty, making the null percent 0.00. The column is fully populated. Minimum value is 45.00 and maximum value is 75.00.
db_hi	float	Data source did not contain a description for db_hi. Column db_hi has 1669 rows, out of which 0 are empty, making the null percent 0.00. The column is fully populated. Minimum value is 50.00 and maximum value is 100.00.
datanomist	string	Data source did not contain a description for datanomist. Column datanomist has 1669 rows, out of which 0 are empty, making the null percent 0.00. The column is fully populated. The single string value is: Helsinki/Ympa.
paivitetty	date	Data source did not contain a description for paivitetty. Column is empty.
geom_geojson	string	Geometry in GeoJSON format.
orig_extractdate	string	The date when the data was originally fetched from the source.