Monday, November 5, 2018

Swimming pools and skin problems

I wonder if the oxidising chemicals in swimming pools can exacerbate the formation of skin lesions in older and more susceptible people? Lots of my friends at aquarobics have had various small skin cancers other suspicious-looking lesions removed from their skin. Of course we are all at the age when most lesions show up, but is the pool water causing more lesions than we might have experienced otherwise? Most of us attend aquarobics for 2 hours each week and some have home swimming pools as well.

My skin is no gauge, however, since it is that pale European shade that goes with red and sandy blonde hair. It is very susceptible to skin cancers, plus I had multiple bad sunburns as a child and even as an adult. I have only had 2 tiny skin cancers frozen off with nitrogen, one on a forearm and the other next to my nose near my eye.

When I visited a dermatologist after nearly going insane with itchy growths on my scalp he found a suspicious lump near the back of my neck. The head lumps were not even worth investigating! But the back one made him exclaim "I think we have a cancer here!" That gave me the heeby jeebies as I had no idea it was there; so the doc ordered a biopsy and I had to wait two weeks for that appointment.

It occurred to me that anti-oxidants might be good for curing, or at least shrinking, a rough, dry skin patch so I slathered the spot with rosehip oil every day until the biopsy. Please don't treat yourself before seeing a doctor! I certainly don't. I always ask my GP about any "suss" new moles or rough patches and she usually has an answer. When in doubt she sends me straight to the dermatologist.

Meanwhile the biopsy was done and the result was negative! The dermatologist was quite surprised and I was very relieved. Probably the growth was not malignant in the first place, but it was certainly benign when the sample was punched out! Now I routinely apply rosehip oil to any strange, rough or extra-dry spots on my skin and have had no further skin cancer diagnoses.

Yesterday I came across this article which seems well-written and seems quite relevant for people with concerns about pool chemicals. And I am NOT a person who has worries about our lives being ruined by "all those chemicals" that are everywhere these days.

The chemical reactions taking place in your swimming pool

Dear readers, please look up your own references as I have a pile of 37 drafts for blog posts that I haven't put up because I was worried about references!

Article from c & en. Chemical and engineering news. Published by the American Chemical Society. Permission to re-publish sought.

This is the published standard for maintaining pools and spas in South Australia:

All sensible comments welcome.

Wednesday, February 22, 2017

Fixing Africa. The whole shebang including health.

African governments aren't taxing the rich. Why they should

Rhiannon McCluskey, International Centre for Tax and Development

A great deal of attention has been paid to the obstacles African governments face in effectively taxing the profits of transnational corporations. African governments are frequently urged to widen their tax bases by reducing tax incentives for foreign investors. But what about Africa’s rich? Some Africans are very rich, and in many cases they are not paying their fair share of taxes.

The number of super rich on the continent is growing fast. According to New World Wealth, the number of high-net-worth individuals (people with assets over $1 million) in Africa rose at twice the pace of the rest of the world in the past 15 years. Its 2016 Africa Wealth Report states there are about 165,000 high-net-worth individuals in Africa, with combined wealth of $860 billion. More ultra high-net-worth individuals (with $30 million or more in assets) were created in Africa since 2003 than in any other region of the world. According to Wealth Insight, there are 1,932 in Africa.

But it is challenging for African governments to tax the wealthy.

Why collection is so hard

One of the reasons is the challenge of taxing income in economies that are highly informal. In Organisation for Economic Cooperation and Development countries, personal income taxes make up about a quarter of all tax revenue collected. In Africa, they only make up about a tenth on average, and as little as 4% in countries like Uganda and Rwanda. This is primarily – up to 95% – collected from employees of formal businesses through the pay-as-you-earn system. Self-employed professionals generally evade taxes and formal employees often engage in informal business on the side.

This informality contributes to African tax administrations lacking information on which citizens are high-net-worth individuals. In Kenya, only 100 high-net-worth individuals of a likely 40,000 are registered with the tax authority. In South Africa, up to 114,000 high-net-worth individuals are unregistered, costing the government about $10.9 billion in tax revenue.

It is also hard for African governments to tax the rich because they hide their wealth using the offshore financial system. Gabriel Zucman, from the London School of Economics, estimates that 30% of all African financial wealth is held offshore, amounting to about $500 billion. This means African governments are losing out on roughly $15 billion in taxes from individuals annually, and this does not take into account non-financial wealth. In 2015, Swiss Leaks revealed that HSBC Switzerland alone held more than $6.5 billion for clients from sub-Saharan Africa.

Uganda as a case study

A recent study undertaken by the Uganda Revenue Authority with support from the International Centre for Tax and Development, revealed the extent to which the political and economic elite evade taxation in Uganda.

The researchers examined lawyers from top commercial law firms and found that out of a group of 60, only 12 had paid personal income tax in 2012, and only 13 did the following year. The team also investigated individuals who paid large import duties. They found that although 12 people paid more than $180,000 in customs duties in 2014, none of them had paid personal income tax.

The researchers also investigated the links between government officials, business and tax compliance. Looking at a group of 71 high-ranking government officials owning large business assets (like hotels, schools and media houses), they found that only one had ever paid personal income tax between 2011 and 2014. Further, the companies the officials were associated with were largely non-compliant, with 47 out of 56 not paying any corporate income tax in 2013.

Political challenges

Increasing tax compliance among the wealthy is challenging because economic elites have great political influence. They are also often members of the political elite. In Kenya, for example, the government tried to implement a capital gains tax on the sale of property and shares, but was forced to scrap it due to resistance from business.

Uganda tried to introduce a system requiring income tax clearance from people buying land valued over $18,000 in 2011. This was also stopped due to political pressure.

Still, great progress is possible. Spurred by the results of the study mentioned above, the Uganda Revenue Authority established a high-net-worth individual unit in September. The new unit has been a significant success, raising an impressive $3.3 million in revenue by February.

Although enforcing tax compliance among the rich can generate significant additional revenue, what is at stake is much greater. The injustice of those with the most money not contributing to the public purse erodes the legitimacy of the whole system, leading those with less to feel even less willing to comply. As Ugandan researcher Ronald Waiswa said:

If you let the big crocodiles swim freely, the small fish will follow.

The Conversation

Rhiannon McCluskey, Researcher Officer, International Centre for Tax and Development

This article was originally published on The Conversation. Read the original article.

Saturday, April 2, 2016

One of the quietest and best public health achievements I have come across. Guinea worms OUT!

Thank you Jimmy Carter and Motherboard.

Monday, December 8, 2014

"Toxins" don't exist

As I've been telling anyone who will stick around long enough for decades YOU CANNOT DETOX YOUR BODY!

Human bodies have evolved to de-toxify themselves, mainly via the liver and kidneys. There are substances which are truly toxic to some individuals, or for all of us, but we don't tend to have "de-toxifying" regimes thrust on us for those. For people with Wilson's disease the toxic substance is Copper and for the rest of us it can be excess headache tablets in the form of paracetamol/acetominophen. As that reference tells you, even a small overdose can be fatal! As a freely available over-the-counter medicine in most countries, we should give the community Public Health reminders about Paracetamol's easy toxicity.

Finally, a prominent and popular newspaper has made a headline out of it. You could do worse than reading this article from the Guardian. [Copyright rests with The Guardian].

You can’t detox your body. It’s a myth. So how do you get healthy?