Figure 3.2, Reference: http://www.who.int/uv/publications/en/UVIGuide.pdf

Footnote 2. World Health Organization, Ultraviolet Radiation and the INTERSUN programme, http://www.who.int/uv/faq/whatisuv/en/index2.html

Footnote 3. European Space Agency (ESA) Earth Online, https://earth.esa.int/web/guest/home

Footnote 4. NASA, Goddard Space Flight Center, http://aura.gsfc.nasa.gov/index.html

Footnote 5. Ozone Measurement at Fairbanks, Alaska, using the Dobson Spectrometer http://www.esrl.noaa.gov/gmd/ozwv/dobson/

Figure 3.4 Reference: http://www.who.int/uv/publications/en/UVIGuide.pdf

Footnote 6. NOAA, Stratospheric Ozone, http://www.ozonelayer.noaa.gov/action/ozonesonde.htm

Footnote 9. United Nations Environment Programme, Ozone Secretariat, Status of Ratification http://ozone.unep.org/en/treaties-and-decisions

Footnote 10. United Nations Framework Convention on Climate Change, UN Climate Change Newsroom, http://newsroom.unfccc.int/

Figure 3.7 NASA, Goddard Space Flight Center, Ozone Hole Watch, http://ozonewatch.gsfc.nasa.gov/monthly/index.html and data obtained from: ftp://aftp.cmdl.noaa.gov/data/ozwv/Ozonesonde/South%20Pole,%20Antartica/

Figure 3.8 http://www.wmo.int/pages/prog/arep/gaw/ozone_2014/ozone_asst_report.html and http://ozone.unep.org/Assessment_Panels/SAP/SAP2014_Assessment_for_Decision-Makers.pdf

Additional Resources

7.   Goddard Earth Science Data and information Services Center http://disc.sci.gsfc.nasa.gov/acdisc/TOMS/tomsl3_dataset.gd.html

8.   NASA, Ozone and Air Quality, https://ozoneaq.gsfc.nasa.gov/data/ozone/

9.    NASA, Goddard Space Flight Center, Ozone Hole Watch, http://ozonewatch.gsfc.nasa.gov/monthly/index.html

10.  United Nations Environment Programme, Ozone Secretariat, http://ozone.unep.org/