Heavy Metals in Urban Soils

The Beet: A Podcast For Plant Lovers

Epic Gardening

Home & Garden, Education, Leisure, How To

4.8 • 1.6K Ratings

🗓️ 7 June 2023

⏱️ 6 minutes

🔗️ Recording | iTunes | RSS

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Summary

Heavy metals and metalloids can come from tons of sources and once they are in the soil, they can stay there for decades to come.. This is one reason it is important to know what surrounds your home and the history of the land it is on. Connect With Anna Paltseva: Dr. Anna Paltseva, Endowed Assistant Professor, is an international urban soil scientist at the University of Louisiana at Lafayette (ULL), School of Geosciences. Her expertise is in urban soil contamination and remediation of urban gardens. She helps people to determine soil heavy metals, their potential impact on human health, and to find the best ways to improve soil quality in urban gardens. In 2021 she established the Delta Urban Soils Laboratory at ULL to provide soil testing services and informal education to communities, small production farmers, and gardeners in Louisiana and beyond. Instagram YouTube Website Buy Birdies Garden Beds Use code EPICPODCAST for 5% off your first order of Birdies metal raised garden beds, the best metal raised beds in the world. They last 5-10x longer than wooden beds, come in multiple heights and dimensions, and look absolutely amazing. Click here to shop Birdies Garden Beds Buy My Book My book, Field Guide to Urban Gardening, is a beginners guide to growing food in small spaces, covering 6 different methods and offering rock-solid fundamental gardening knowledge: Order on Amazon Order a signed copy Follow Epic Gardening YouTube Instagram Pinterest Facebook Facebook Group Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	You hear a lot about heavy metal, toxicity, heavy metals in soils.
0:17.3	I have two questions that are unresolved at least in my brain and I'd love to know
0:22.0	the answer and thank goodness we have Dr. Anna Palsava on the show, she's an endowed
0:27.0	assistant professor and an international urban soil scientist at the University of Louisiana
0:31.5	at Lafayette.
0:32.8	So here are my two questions, Anna, and answer them in whichever way you see fit.
0:38.1	Number one, what is the heavy part of heavy metals mean, maybe a simple beginner question,
0:43.6	and then number two, how did heavy metals get in soil if not from just nature and natural
0:50.6	rock, etc.?
0:51.6	Yeah, heavy metals, good question.
0:54.8	Nowadays they actually want to change it to potentially toxic elements, because now
1:01.2	we have more elements that are toxic and then not as early metals, so there might be
1:06.3	disturbance changing in the near future.
1:09.0	But have you really related more to density of elements on the periodic table?
1:15.4	But when we talk about humans, we should really refer to toxic toxicity of this element
1:21.9	rather than its heaviness on the periodic table.
1:25.0	So that's why there's like shift to a new terminology.
1:28.2	So soon it might be potentially toxic element you hear more often.
1:33.5	What would be a toxic element that wouldn't qualify as an elemental metal, but is still
1:38.4	harmful to show up in soil then?
1:41.0	Yeah, arsenic, metal, Lloyd, it's not exactly metal, but it is...
1:47.6	Closed.
	...

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