The simulation showed that under still and convective conditions the vapours emitted by a point source rapidly form stationary envelopes around the leaves. |
He said regional council staff had concluded that the discharges would be a very high point source for several potentially toxic metals and dioxins. |
The light used must come from a point source, the smaller and the more intense it is the better. |
Generally speaking, point source pollution is easier to regulate or control because you know the source of the pollution. |
In other words, for a light meter to read 1 foot-candle from a uniform point source of light that is 1 ft. away, a light source of about 12.57 lumens is required. |
Illuminance is the measurement of how bright a point source of light appears to the eye. |