Lead: A Toxic Legacy - Dr Ian Mudway

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Ай бұрын

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Evidence that childhood lead exposure caused stunted intelligence and behavioural problems motivated efforts to ban lead in petrol, with the world finally eradicating leaded fuel in 2021.
This is a public health success story, but it took a long time to force industry to take action. The lead released from historic emissions persists within the environment and there is emerging evidence of continuing health effects.
The legacy of lead remains and will be explored in this lecture.
This lecture was recorded by Dr Ian Mudway on 25th March 2024 at Barnard's Inn Hall, London
Ian is Visiting Professor of Environmental Health.
He is a senior lecturer in the School of Public Health at Imperial, a member of the MRC Centre for Environment and Health; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma and the NIHR-PHE Health Protection Research Units in Environmental Exposures and Health and Chemical and Radiation Threats and Hazards.
The transcript and downloadable versions of the lecture are available from the Gresham College website:
www.gresham.ac.uk/watch-now/l...
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Пікірлер: 28

@trevormatthews7981 Ай бұрын

I was doing an occupational health and safety course recently. At the time I was working in a special education school. I was struck by the overlap of effects of lead in young children and the entry requirements to get into a special education school. Out of curiosity I got some lead paint testing swabs and by checking the chipped paint in pre 1960s school building most sample points came back positive for lead. Management was not very interested and I left shortly afterwards…2022.

@Suburp212 29 күн бұрын

Sue the school board.

@silaskelly604 Ай бұрын

In July I will be 101 y/o. I became aware of lead poisoning around 1929 or 1930 from the problems caused by the Roman lead aqueducts. Every attempt I have made in the last 95 years or so to bring this horror to people's attention has been met with astonishment from friends, relatives and strangers that I am apparently crazier than they had previously supposed. And promptly and thoroughly ignored.

@stevekristoff4365 Ай бұрын

You probably needed to do more reading. Romans DID NOT have a lead problem in their water supply because they preferred waters that had high mineral deposits which COATED the lead pipes/traverses which prevented lead from getting INTO the supply.

@mbsjanetelizabeth 23 күн бұрын

The coating you refer to could have taken decades to cover the pipes , as it did for UK 19th century plumbing. But i think the point is the toxicity rather than the lucky avoidance of lead.

@stevekristoff4365 23 күн бұрын

@@mbsjanetelizabeth actually not, would have taken that long to CLOSE the pipes but looking at existing records of repair and construction (Vitruvius wrote on it) but it only would take days/week at most as the point is the highly mineralized water would just need to coat. (most of the issues romans ran into was the complete/near complete sealing of the waterways which had to be chipped/carved out fresh.

@Mr-Mr66 6 күн бұрын

@stevekristoff4365 are you really 100 years old?

@stevekristoff4365 6 күн бұрын

@@Mr-Mr66 lol. No, and you may need glasses. That quote of 'will be 101' is not from me but from @silaskelly604. That being said /I/ am well old enough to be well into my second half century.

@phantomplastics6582 12 күн бұрын

In the US organizations are lobbying to replace lead pipes with copper but studies show that such copper pipes can also contain significant amounts of lead, they cost far more and are worse for the environment according to life cycle studies not to mention the toxicity of copper.

@kp6215 Ай бұрын

Lead explains why I was sick worse moved from country to San Fernando Valley 1959 the smog that I remember was HUGE that I couldn't participate in sports and anemia. The corporations should pay for the health problems of the baby boomers that are dying earlier than our grandparents.

@GlassEyedDetectives Ай бұрын

A very sobering presentation, thank you. Are there any Alchemist out there who fancy their chances? .........i wait eagerly for chapter 2:- 'Asbestos; Keeping The Heat At Bay?

@fabiodeoliveiraribeiro1602 Ай бұрын

In the 1990s I was a lawyer for a workers' union. In 1993 we managed to create, together with the public authorities responsible for monitoring occupational safety legislation, a program to map in detail all the risks that existed in companies in the professional category. This program, carried out with doctors, engineers and occupational safety specialists, generated detailed and specific reports indicating problems and measures that should be adopted. In a company where the use of paint containing lead was detected, workers were forced to take blood tests. The results of the tests showed that all employees who worked in the place where that paint was used were contaminated. One of them had extremely high levels of lead in his blood and had to be removed from work for medical reasons. He could sue the employer for damages to his health. Threatened with high fines and criminal proceedings, the businessman replaced that paint with a more expensive one without lead in its composition. The most infected employee refused to take any precautions because he was promoted and received a salary increase. This was the biggest professional disappointment I had, because I knew that this sick man would continue to suffer the effects of lead contamination even if the paint had been replaced.

@EcclesiastesLiker-py5ts Ай бұрын

Oh, how timely.

@kp6215 Ай бұрын

😘 Love to Greshen and this Prof.

@kp6215 Ай бұрын

I have seen this lecture before thus please add the original date of lecture.

@st.sebastian2218 Ай бұрын

It's in the description.

@danwylie-sears1134 Ай бұрын

It seems to be impossible to find information on lead in tires by web search. Tires are full of too much other toxic stuff to find anything without the word "lead", but using the word exclusively gets results involving the phrase "will lead to". Maybe other people with different search histories can do better, but for me the information is completely inaccessible.

@BsktImp Ай бұрын

Imagine if a whole swathe of societal ills - mental illness, propensity to addiction, anti-Flynn effect, crime and recidivism, political reasoning and voting patterns, risk and attitudes to finance - could be directly explained by mechanisms underpinned by toxicants such as Pb, PFAs and microplastics.

@kp6215 Ай бұрын

They know already because chemical industry with mining since 3000 BC harmful to homosapiens.

@Breakthefirstwall Ай бұрын

"Yes"

@kp6215 Ай бұрын

Lets return to horses please that don't have LEAD.

@christyb2912 Ай бұрын

What if countries in great need of manual labor do not mind their population loosing IQ points? 😶

@kp6215 Ай бұрын

My tumeric is not yellow.

@myparceltape1169 Ай бұрын

But it explains why the white plastic stirrer we used turned yellow and you can't wash it off.

@simonwheeler8981 Ай бұрын

Presenter complains that geochemists should be taken more seriously by medical researches, then goes on to show why this happens. Seriously, the epidemiology towards the end was so amateurish it was embarrassing.