DSNY Waste Characterization 2017 – Subsort Results

phkb-tktsEnvironment9 columns

The Department conducted the 2017 NYC Residential, School, and NYCHA (NYC Housing Authority) Waste Characterization Study over three seasons: spring, summer, and fall. This study builds on decades of research and analysis into the evolving composition of NYC's waste stream. The study team hand sorted samples into 70 main sort categories. Sub-sorting of an additional 172 categories was conducted to get a more detailed understanding of the wide variety of plastic products in the waste stream, as well as a sub-set of Paper products. Results are presented in absolute terms as the quantity by weight of each material type. The quantity of each material is calculated by applying the percent composition to the total quantity of DSNY collections for fiscal year 2017 (July 2016-June 2017).

View on NYC Open Data

Quality

C77.8 / 100

From a 500-row sample across 9 columns.

completeness100/ 25% weight

consistency72/ 20% weight

accuracy92/ 20% weight

timeliness20/ 15% weight

usability85/ 20% weight

· No obvious temporal column — limits time-series joins

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joins onlocation
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Sample rows

material	aggregate_percent	refuse_percent	mgp_percent	paper_percent	organic_percent	material_group	dsny_diversion_summary	location
Newspaper	0.019	0.011	0.005	0.098	0.0	Paper	Designated Paper	Citywide
Plain OCC/Kraft Paper	0.056	0.012	0.01	0.464	0.002	Paper

Columns

9 queryable · 9 profiled

The machine field names SoQL needs, with the publisher's own description of each.

Field	Type	Description	Null	Values
`material`	text	The classification of all materials in the waste stream into categories for sorting, weighing, and counting purposes.	0%	`Compostable/Soiled Paper…Plastic Bottles: #1 PET …K-Cups: Predominanty Pla…`
`aggregate_percent`	float	Percentage of a material in all combined applicable streams.	0%	`0.00.0010.002`
`refuse_percent`	float	Percentage of a material in the refuse stream.	0%	`0.00.0010.002`
`mgp_percent`	float	Percentage of a material in the metal, glass, and plastic stream.	13%

Query this from your own app

GET /api/datasets/phkb-tkts
GET /api/datasets/phkb-tkts/quality
GET /api/datasets/phkb-tkts/related
GET /api/columns?dataset=phkb-tkts