I hope someone can help stopthe silliness about fireworks and excessively cold water and say the the truth.The public has been looking at dancing with the stars and football to long and are very adept to believe these inaccuracies and misinformation...so here it is the highly probable root cause
This is a medical review of what happened in 2007 week1 jan and lead testing done on birds and humans affected
[link to ehp03.niehs.nih.gov]

This is the same company that caused the first disaster in 2007 and here again in 2010 december 25th are closed down for the same carelessness because more lead carbonate has leaked in the air again and were exported by sea to different places
[link to www.theaustralian.com.au]

[link to www.theaustralian.com.au]

This is 2007 jan week1 in texas austin
[link to www.dailymail.co.uk]

This is first incident week 1 jan 2007 Esperance Australia
[link to www.independent.co.uk]