Lead (Pb)
Elements1 Okt 2014

Lead (Pb)

Lead is the sweetest of poisons, blamed for everything from mad Roman emperors to modern-day crime waves. Yet a lead-acid battery is still what gets your car going in the morning. So have we finally learnt how to handle this heavyweight element? Justin Rowlatt travels to arts shop Cornelissen in London's Bloomsbury to find out why they have stopped stocking lead paints, and hears from professor Andrea Sella of University College London about the unique properties that have made this metal so handy in everything from radiation protection to glassware.

Yet lead in petrol is also accused of having inflicted brain damage on an entire generation of children in the 1970s, as the economist Jessica Wolpaw-Reyes of Amherst College explains. And, producer Laurence Knight travels to one of the UK's only two lead smelters - HJ Enthoven's at Darley Dale in Derbyshire, the historical heartland of the UK lead industry - to see what becomes of the lead in your car battery. And, we speak to the director of the International Lead Association, Andy Bush.

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Episoder(65)

Tin (Sn)

Tin (Sn)

Tin may seem old-fashioned, but it plays some surprisingly important roles in the modern economy. Presenter Justin Rowlatt meets our favourite chemist Andrea Sella of UCL at Pewters' Hall in London to...

18 Jul 201431min

Carbon (C) - materials

Carbon (C) - materials

We all know carbon's role in global warming, but could element 6 also provide some solutions? Carbon fibre composites are making planes more fuel efficient, as Airbus explains. And wonder-material gra...

17 Jul 201427min

Carbon (C) - energy

Carbon (C) - energy

Carbon is a great energy store – in plants and animals, but also as hydrocarbons – coal, oil and natural gas. From the Industrial Revolution onwards, burning these fossil fuels has released vast quant...

16 Jul 201426min

Gold (Au)

Gold (Au)

Heavy and chemically inert, why is gold, of all the elements of the periodic table, so highly valued by mankind? Does it even provide a sound basis for modern currencies? What is it actually useful fo...

15 Jul 201423min

Mercury (Hg)

Mercury (Hg)

Mercury is beautiful, yet deadly poisonous. Known as quicksilver, the Minamata international treaty aims to phase its use out completely. But how will the ban on element 80 affect artisanal gold miner...

14 Jul 201423min

Aluminium (Al)

Aluminium (Al)

Light, strong and flexible, aluminium is used in drinks cans, window frames, aircraft and packaging. Ubiqitous today, why was it valued more highly than gold 150 years ago? Is it better to recycle thi...

13 Jul 201427min

Helium (He)

Helium (He)

The second most abundant element in the universe, helium is rare on Earth. In liquid form it is used as a coolant in super conducting magnets in MRI scanners – so should this rare element be used in s...

12 Jul 201423min

Phosphorus (P)

Phosphorus (P)

Phosphorus is essential for life. Our crops would not grow without phosphate fertiliser. So should we worry that we may be frittering the stuff away? Or that most of the world's remaining reserves are...

11 Jul 201420min

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