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Heavy Metal Contamination is Turning Green Leafy Vegetables Purple

Although not visible to the naked eye, leafy greens can be observed with sophisticated hyperspectral imaging turning purple (different than purple varieties of some vegetables). This color shift was identified in cadmium-stressed kale and basil by Purdue researchers. Cadmium is a heavy metal that is hazardous to humans and animals. ....

Lori Hoagland , Maria Zea , Krishna Nemali , Linda Lee , Augusto Souza , Purdue University , Purdue Soil Microbial Ecology Lab , Soil Microbial Ecology , Plant Based Food , More Common , Anthocyanin Reflective Index , Environmental Pollution , Chemical Analysis , Chemical Exposure ,