... critical, since relativelyL1401-frame-C3 Page 44 Monday, April 10, 2000 9: 23 AM© 2000 by CRC Press LLC 30 HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL In this chapter ... concentration in soils, sediments, glaciers, and stratified L1401-frame-C3 Page 33 Monday, April 10, 2000 9: 23 AM© 2000 by CRC Press LLC46 HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL between ... 34 HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL waters throughout the world, recording the maximum surge of lead emissions from cars andindustry earlier in this...