To worry about living 550m from a 400kv pylon?

[Marsaday]

We've had an offer accepted on a house. Nothing exchanged yet, survey and searches not done either yet as vendors have yet to find for themselves.

We've just discovered that the government have approved a new 400kv powerline which will run approx 550m from the house. It will be mounted on pylons between 36-50m high depending on the type they use.
The house is currently 300m from a 132kv line, which will be taken down and dug under the ground as part of the works.

I am now wondering if I should be worried about being this distance from such a high voltage line. I know there is an increased risk of childhood leukaemia living close, but not sure if 550m falls within this range.
We have a baby and a toddler and obviously don't want to put them at risk.

Also wondering about the buzzing/cracking noise they make when it rains, I'm not sure if you'd hear it at 550m or not. Does anyone know?

I'm also concerned about it making the house hard to sell or massively devaluing it.

Finally I'm not sure about how intrusive the work would be to construct such a line, whether it could mean years of disturbance amd construction traffic for example.

Should I be worried?

Ah no - I'm in the US so it's only 9.45pm here. Hope your baby sleeps soon...

nutbrownhare

Loads of things. Cells are generally set to a default suicide mode. If they don't get all the correct signals they need to survive then the off themselves (it's called apoptosis and it's fascinating.)
The 'stay alive!' Signals are things like being in the right place - so a skin cell in the bloodstream would kill itself. Also having intact DNA. A cell with DNA damage should kill itself.
Cells pick up colossal amounts of damage every day (10,000 errors per cell per day if you can believe that) and we are pretty damn good at fixing that damage. It occurrs just by living, or exposure to radiation (natural, X Rays, uv light) or by various chemicals. The main risk factor for most cancers is age, because we accumulate damage.
Many genes control cell division and DNA repair - if you have an inborn error in one of these genes, or its damaged in some way, then you district the processes that keep your cells in check. Or if you have an error in one of the suicide/ apoptosis genes then you're more prone to cells not killing themselves when they should.
A normal cell, say one in the gut lining, needs to pick up several mutations before cancer really exists - let's say one to take the brakes off proliferation. Then one to prevent suicide, then one to allow invasion of other tissues. Now our gut cell can grow, and escape the gut and travel to other sites to seed new tumours. The process for gut tumours is generally very long, roughly 20 years. Other tumours need only one 'hit' to get going.

The list of things that can potentially damage DNA is vast. You can avoid a lot of them by:

Never, ever smoking
Drinking lightly if at all
Less red meat
Less sugar
Keep your weight in range
Excercise regularly
Get anything suspicious checked pronto

Most of the rest is age and genetics.

specialsubject why thank you 😊