Mosquito control events in NYC – Adult Mosquito Truck Spraying and Aerial Larviciding Events
This dataset shows the mosquito spraying events in NYC. The Health Department monitors mosquito populations and applies pesticides when appropriate throughout the summer to reduce the number of mosquitoes and to minimize the risk of mosquito-borne diseases such as the West Nile Virus and the Zika Virus. This dataset contains information about when and where mosquito spraying events occur in NYC. DOHMH sprays pesticides from trucks to kill adult mosquitoes (adulticiding) or to kill mosquito larvae (larviciding) in areas that have an increased risk of mosquito spreading disease. These events – in residential and non-residential areas – are carefully planned by DOHMH to minimize human exposure to the pesticides. DOHMH creates the spray event boundaries and stores them in a GIS. Each record represent the extent/boundaries of a spray treatment area. The spray events are not fixed, each year the locations, boundaries and extents are determined by a variety of factors throughout the mosquito season. For the historical data, please visit this page.
Open in the graph · Relate this dataset · What these columns mean
Freshness
The publisher's promise
How the agency that publishes this data says it keeps the data current.
Stale
- Says it updates
- Annually
- Actually updates about every
- —
- Publisher last updated the data
- Feb 27, 2025
Our mirror
Whether our copy of this data is current with the source.
In sync
- We last synced
- Feb 27, 2025, 10:59 AM
- Rows in our copy
- 189
- Rows at the source
- 189
- Our copy trails the source by
- under a minute
Columns
Each source column, with the name and type we use to store it.
0 of 7 columns carry a concept; 7 carry a description from the publisher. Read the concept column before you join. A column with no concept carries no claim from us, and a name that looks like a key is not one.
| Source field | Display name | What the publisher says it is | Concept | Source type | Stored as | Stored type | Row identifier | Unit |
|---|---|---|---|---|---|---|---|---|
event | Event | Number of the event in the spraying season | Not bound | Number | event | numeric | — | |
zip_codes | Zip Codes | Zip codes included in the treatment event | Not bound | Text | zip_codes | text | — | |
year | Year | Spray event year | Not bound | Number | year | numeric | — | |
borough | Borough | Borough where the treatment event occurs | Not bound | Text | borough | text | — | |
date | Date | Date(s) when the event occurred | Not bound | Text | date | text | — | |
spray_area_neighborhood | Spray Area (Neighborhood) | Neighborhoods in the treatment event |
Download
This file was produced on Aug 26, 2026, 10:53 PM.
Refresh this dataset
Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/msid-end4
- Version
- Content hash:
95ec8e256b1bbad5c96487aa9728b6c9dc202d66dd6502b1129b34111f62a0a3 - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- Feb 27, 2025, 10:59 AM
Update history
| Started | Kind | Result | Rows written | Produced by |
|---|---|---|---|---|
| Aug 26, 2026, 2:24 AM | full_replace | success | 189 | codenow-nycmesh-container-oci.jfrog.io/codenow/citytap-pull:0.1.72 |