Report Backyard hens’ eggs contain 40 times more lead on average than shop eggs, research finds

tom_mai78101

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There’s nothing like the fresh eggs from your own hens, the more than 400,000 Australians who keep backyard chooks will tell you. Unfortunately, it’s often not just freshness and flavour that set their eggs apart from those in the shops.

Our newly published research found backyard hens’ eggs contain, on average, more than 40 times the lead levels of commercially produced eggs. Almost one in two hens in our Sydney study had significant lead levels in their blood. Similarly, about half the eggs analysed contained lead at levels that may pose a health concern for consumers.

Even low levels of lead exposure are considered harmful to human health, including among other effects cardiovascular disease and decreased IQ and kidney function. Indeed, the World Health Organization has stated there is no safe level of lead exposure.

So how do you know whether this is a likely problem in the eggs you’re getting from backyard hens? It depends on lead levels in your soil, which vary across our cities. We mapped the areas of high and low risk for hens and their eggs in our biggest cities – Sydney, Melbourne and Brisbane – and present these maps here.

Our research details lead poisoning of backyard chickens and explains what this means for urban gardening and food production. In older homes close to city centres, contaminated soils can greatly increase people’s exposure to lead through eating eggs from backyard hens.


 

The Helper

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One of my friends gets all his eggs from his backyard chickens. I wonder what the lead content is there? I wonder how you find out?
 

tom_mai78101

The Helper Connoisseur / Ex-MineCraft Host
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One of my friends gets all his eggs from his backyard chickens. I wonder what the lead content is there? I wonder how you find out?
  • Chicken blood sampling
  • Egg collection. (Egg shells analysis)
  • Reports of chickens displaying behaviours that they considered might be associated with Lead Pb exposure (loss of appetite, weight loss and cessation of egg laying).
  • Participant's drinking water supply for the chicken.
  • Participant's food scraps for the chicken.
  • Soil analysis.

More details can be found in this research paper:

 
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    Wow
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    Is the school system in your country similar to Chinese school system? I could never imagine being a teacher in a Chinese school, what's expected of students and teachers is just so different from what I'd be looking for as a teacher
  • vypur85 vypur85:
    A Levels is based on the UK syllabus offered internationally. So the syllabus is similar throughout different countries, taught in english.
  • vypur85 vypur85:
    I can't speak or write or read much chinese... Too difficult....... Which also makes my life here in china a lil difficult.
  • jonas jonas:
    Oh, I see. I thought Chinese version of A-levels :D
  • jonas jonas:
    I've been using the translate app a lot on my phone. take a photo, translate. take another photo, translate again :D
  • jonas jonas:
    it also has voice translation, my colleagues sometimes use that
  • jonas jonas:
    You came during the 0 covid policy right? How'd you get through quarantine? Did you have some help with the apps and green codes?
  • tom_mai78101 tom_mai78101:
    If you have any Chinese you need help with, let me know.
    +1
  • vypur85 vypur85:
    @jonas Those were the things I did too. Translate app and VPN are always the most important things to have to survive. Lol.
  • vypur85 vypur85:
    Yea I came last year. I was quarantined for about 30 days. Fml. The first day of my quarantine was the eve of Chinese new year last year. Fml again... Lol.
  • vypur85 vypur85:
    @tom_mai78101 IIRC you're from Taiwan right.
  • The Helper The Helper:
    I thought China had cracked down on having any foreign teachers?
  • vypur85 vypur85:
    Yeah I've heard of the news before. My school is still actively hiring foreign teachers. Not sure how things work now.
  • The Helper The Helper:
    yeah it is hard to get reliable information about that kind of stuff
  • The Helper The Helper:
    but you are doing it so it is still doable
  • vypur85 vypur85:
    I think it doesn't affect existing foreign teachers. Then again, its still weird that my school is hiring.
  • The Helper The Helper:
    Happy Monday people hope everyone has a fantastic week!
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    Happy Monday?! That's a contradiction.
  • jonas jonas:
  • jonas jonas:
    please put this in the news section, it's crazy
  • tom_mai78101 tom_mai78101:
    Technically, you can post in the Headline News. Just posted your news there.
  • tom_mai78101 tom_mai78101:
    I'm not aware of you not being able to post news.
  • jonas jonas:
    I think technically I can I just forget how

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