Addressing global change impacts on the marine environment by using - - PowerPoint PPT Presentation
Addressing global change impacts on the marine environment by using - - PowerPoint PPT Presentation
Addressing global change impacts on the marine environment by using nuclear techniques Ana Carolina Ruiz Fernndez Universidad Nacional Autnoma de Mxico Hoegh-Guldberg et al., 2007 Pb (g g -1 ) Pb (mg g -1 ) 2018 2015 2010 2005
Hoegh-Guldberg et al., 2007
5 7 9 11 Pb (µg g-1) 5 7 9 11
2018 2015 2010 2005 2000 1990 1980 1970 1960 1950 1940 1930 1920 1910
Pb (mg g-1)
210Pb dating
B C E F G H I J K A
D
L
A=Havana Bay, B=Coatzacoalcos River, C= Amatique Bay, D=Cortés Harbor, E=BluefieldsBay , F=Portete Bay, G=Almirante Bay, H=Cartagena Bay, I= Cariaco Gulf, J=Kingston Bay, K=Port au Prince, L=Haina River
The Great Caribbean Region IAEA Projects RLA/7/012,RLA/7/014, RLA/7/020, RLA/7/022
Nuclear techniques to reconstruct contamination trends
0,1 1 10 Antropogenic Levels Natural Levels Hg (microg g
- 1)
Coral growth
24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 1915 1925 1935 1945 1955 1965 1975 1985 1995 2005 2015 δ11B (‰) Mg/Ca