What We Do Publications, Data & Maps Maps Health

Maps

Browse through maps depicting Bay health and restoration, including pollution trends, public access sites and more.

Category: Health

Bay & watershed health maps from our Bay Program map gallery. Prior to using any of these maps, please view our terms of use to learn about usage rights.

  • Date created: Nov 08, 2017

    Chemical Contaminants (2014)

    Tidal waters that are impaired for part or all of the indicated Bay segment by toxic chemicals based on each state's implementation of the Clean Water Act.

    Download

  • Date created: Jul 02, 2015

    Benthic Habitat (Index of Biological Integrity) (2014) Annual Average Score by Sampling Station

    This map shows the 2014 indicator status of the Benthic Index of Biological Integrity by station.

    Download

  • Date created: Jul 02, 2015

    Benthic Habitat (Index of Biological Integrity) (2013) Annual Average Score by Sampling Station

    This map shows the 2013 indicator status of the Benthic Index of Biological Integrity by station.

    Download

  • Date created: Jul 02, 2015

    Benthic Habitat (Index of Biological Integrity) (2014) Percent of Goal Achieved

    This map shows the percent of the Index of Biological Integrity indicator goal achieved by segment.

    Download

  • Date created: Jul 02, 2015

    Benthic Habitat (Index of Biological Integrity) (2013) Percent of Goal Achieved

    This map shows the percent of the Index of Biological Integrity indicator goal achieved by segment.

    Download

  • Date created: Apr 30, 2015

    Long-Term Trends for Bottom Orthophosphate in the Chesapeake Bay: 1999-2013

    Long-term trends were computed by state partners using the Seasonal Kendall non-parametric technique for annual data collected from 1999-2013. Highly significant trends are indicated with triangles and possible trends are show with colored circles. Bottom Orthophosphate concentrations are decreasing/improving significantly at 21 stations, possibly decreasing at 7 stations, increasing/degrading significantly at 6 stations, and possibly increasing at 3 stations.

    Download

  • Date created: Apr 30, 2015

    Long-Term Trends for Bottom Total Phosphorus in the Chesapeake Bay: 1999-2013

    Long-term trends were computed by state partners using the Seasonal Kendall non-parametric technique for annual data collected from 1999-2013. Highly significant trends are indicated with triangles and possible trends are show with colored circles. Bottom total phosphorus concentrations are decreasing/improving significantly at 27 stations, possibly decreasing at 13 stations, increasing/degrading significantly at 12 stations, and possibly increasing at 10 stations.

    Download

  • Date created: Apr 28, 2015

    Long-Term Trends for Bottom Total Nitrogen in the Chesapeake Bay: 1999-2013

    Long-term trends were computed by state partners using the Seasonal Kendall non-parametric technique for annual data collected from 1999-2013. Highly significant trends are indicated with triangles and possible trends are show with colored circles. Bottom total nitrogen concentrations are decreasing/improving significantly at 31 stations, possibly decreasing at 15 stations, and increasing/degrading significantly at 1 station.

    Download

  • Date created: Apr 28, 2015

    Long-Term Trends for Surface Total Phosphorus in the Chesapeake Bay: 1999-2013

    Long-term trends were computed by state partners using the Seasonal Kendall non-parametric technique for annual data collected from 1999-2013. Highly significant trends are indicated with triangles and possible trends are show with colored circles. Surface total phosphorus concentrations are decreasing/improving significantly at 36 stations, possibly decreasing at 23 stations, increasing/degrading significantly at 2 stations, and possibly increasing at 6 stations.

    Download

  • Date created: Apr 28, 2015

    Long-Term Trends for Surface Orthophosphate in the Chesapeake Bay: 1999-2013

    Long-term trends were computed by state partners using the Seasonal Kendall non-parametric technique for annual data collected from 1999-2013. Highly significant trends are indicated with triangles and possible trends are show with colored circles. Surface Orthophosphate concentrations are decreasing/improving significantly at 29 stations, possibly decreasing at 7 stations, increasing/degrading significantly at 5 stations, and possibly increasing at 2 stations.

    Download

    • 1
    • 2
    • 3
    • Next Page >>
    • Last Page >|

Search

Find a map using the form below.

Categories

  • All Maps
  • Pressures
  • Restoration & Protection
  • Health
  • Science & Studies
  • Reference
  • Places & People

Stay informed on our work.
Connect with us.

Follow us on these social networks

Sign up for one of our daily, weekly or monthly newsletters

Subscribe
Chesapeake Bay Program logo

The Chesapeake Bay Program is a unique regional partnership that has led and directed the restoration of the Chesapeake Bay since 1983.

1750 Forest Drive Suite 130
Annapolis, MD 21401

Tel: (800) YOUR-BAY (968-7229)
Fax: (410) 267-5777

© 2022 Chesapeake Bay Program All Rights Reserved

  • Job Openings
  • |
  • Contact Us
  • |
  • Terms of Use
  • |
  • Privacy Policy
  • Job Openings
  • Contact Us
  • Terms of Use
  • Privacy Policy