Arsenic levels in groundwater are typically 200-500 µg/L in Bangladesh. Please convert this range to ppb. assume 1L of water is 1 kg.

Question

asked Jun 17, 2019 82.4k views

1 Answer

Eldad Levy · Answer 1 · 2019-06-23T14:23:15+0000

1 ppb means one part in 1 billion. It can be converted into
$\mu g/kg$ as follows:

$1 ppb=1\mu g/kg$

Also, 1 L is equal to 1 kg because density of water is 1 kg/L.

Thus,

$1 ppb=1\mu g/L$

The arsenic level in groundwater in Bangladesh ranges from
$200 \mu g/L$ to
$500 \mu g/L$ . This can be converted into ppb as follows:

$200\mu g/L=200 ppb$

and,

$500\mu g/L=500 ppb$

Therefore, the range in ppb is 200-500 ppb.