Explore leaf damage data from a single garden or compare across gardens, years, and plant types. Click a map marker to jump to that garden's data or choose your own filters using the options below the map.

While looking at the data graphs think of:

  • When is ozone damage most severe? Ozone damage accumulates over time will likely become worse throughout the growing season.
  • Do you see high ozone concentrations? Ozone concentrations typically peak during the afternoon and are considered unhealthy by the EPA above 70 ppb.
  • Do you see a connection between ozone concentrations and plant damage? Continual exposure to high daytime ozone concentrations (typically above 40 ppb) will contribute to visible damage on plant leaves.

Explore a single garden or switch to compare mode for comparing different gardens, growing seasons, or plants.

Use date range
Chart tips: Click and drag across the chart to zoom in — double-click anywhere on the chart to reset the zoom. Hover over points or bars for details, and use the toolbar in the top-right corner to download a PNG, pan, or auto-scale.
Chart type:
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Select filters to view data

Choose a garden, plant type, or date range to get started

Ozone Concentration

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Ozone data will appear here

Select a garden and update the chart to view ozone concentrations