Historically, we have had more than our share of heavy metal contamination in the UK, including that of lead, as I indicated earlier.
Now, all lead pipes have been removed from the water supply systems in the UK which is why the current events in Flint, Michigan caught my attention.
It is bemusing, to say the least, that in your country you still use pipes constructed of lead for the supply of water for human consumption.


My background is in the application of “settled science” knowledge, fully recognising that it is not the holy grail of, in this case, physics but it serves a function on a day to day basis.
I refer to Newtonian theory and its application to everyday engineering.


In my case, for a number of years, this engineering application was in the fields of water supply and the disposal of dirty water (what you guys sometimes refer to as grey water).
Consequently, BOD and COD calculations and similar maths based solutions to everyday problems were the bread and butter of my life, at that time – I have done other things also.


Like you I have learned a fair bit over many years about pollution, in my case from playing, as a kid, on bomb sites left from WW2 to being involved in designing and implementing engineered solutions.
Here in the UK, we have dealt with most of the issues of pollution; I am not saying that things are 100% hunky dory but we have made great strides in such things and I had a small part to play in that, over the past 40+ years.


It is because of this background that I can hold my current sceptical outlook toward some issues despite those who perpetrate the idea that their brand of “settled science” cannot be challenged – we have gone over that earlier in this thread and those who hold such views and belief systems will probably continue to do so; keep the faith no matter what, as the Jesuits were inclined toward (just as one example of the dogma approach).


I, on the other hand, continue to make a judgement on the basis of what occurs rather than what is said - “what is said” feeds into that of course and that is where the internet is a powerful tool for such personal research.


This continues to be a great thread exhibiting a wide range of information, views, facts, anecdotes and the like.

__________________
Dave