Letter from Andrew Wee Kien Han, Straits Times Forum 17 Apr 08;
IT IS heartening that every so often, we read about increasing efforts to recycle.
Of real concern, however, is the rise in use of hand-held electric components and hence rechargeable batteries. I follow in the footsteps of those who have voiced this concern before.
Any new pack of batteries invariably warns against discarding them in conventional trash. From my understanding in Singapore, our trash is either placed in a southern sea-fill or incinerated within breathing distance of where people live or work.
A quick check on the Internet or an authoritative textbook of biochemistry tells you the following.
# Nickel is a well-documented carcinogen, especially when inhaled as insoluble particulates;
# Cobalt, a component of NiMH batteries, is a suspected carcinogen in high doses;
# Cadmium is a highly toxic metal and a known carcinogen. When inhaled, it can cause flu-like symptoms and loss of productivity at the very least, as well as loss of smell, osteoporosis and renal damage; and
# Some old components also use lead-acid batteries.
I have a sizeable collection of expended nickel metal hydride and nickel cadmium batteries at home. I wouldn't dare bury or burn them, but I am open to suggestions on how to dispose of them.
I suggest we have separate bins so batteries can be disposed of properly.
