New York Harmful Algal Bloom Summary by Waterbody: 2012-2018

This dataset summarizes the maximum bloom status documented by the New York State DEC HABs Program for each waterbody annually from 2012 to 2018. It tracks bloom type, duration, and location across New York's lakes and waterbodies. The data is published by data.ny.gov and is available in multiple formats including CSV and JSON.

Use Cases

• Analyzing the annual frequency and duration of bloom types (e.g., Confirmed, Suspected, No Bloom) using the 'Bloom Type', 'Year', and 'Number of Weeks on DEC Notification List' columns.
• Mapping bloom occurrences by waterbody using the provided 'Latitude', 'Longitude', 'Waterbody Name', and 'County' columns for spatial analysis.
• Identifying seasonal patterns of algal blooms by examining the 'Date of First Listing' and 'Date of Last Listing' across multiple years.
• Assessing regional bloom prevalence by aggregating data by 'DEC Region' or 'County' to identify geographic hotspots.

Strengths

• Includes seven years of consistent annual monitoring data from 2012 to 2018, providing a multi-year trend analysis.
• Contains precise geospatial coordinates ('Latitude', 'Longitude') for mapping and location-based analysis of waterbodies.
• Documents specific bloom statuses and durations with columns for 'Bloom Type', 'Number of Weeks on DEC Notification List', and date ranges.

Limitations

• The exact row count is not provided by any source, making the dataset's scale unclear.
• The dataset is a historical summary ending in 2018, with continuing data available via a separate link, limiting analysis of recent trends.
• Sources conflict on the last update date, with one listing 2026-04-04 and another 2026-04-03, though the underlying data period remains unchanged.

Provenance

Source

New York State Department of Environmental Conservation (DEC) HABs Program, published via data.ny.gov.

Collection Method

Documented monitoring and summary by the state environmental program.

Time Range

2012-2018

Freshness

2026-04-04 23:11:49.361504

Geography

Waterbodies across New York State, United States.