From: How to determine life expectancy change of air pollution mortality: a time series study
SO2 concentrations c(day) | day | day-1 | day-2 | day-3 | day-4 | day-5 |
---|---|---|---|---|---|---|
day | 1.00 | Â | Â | Â | Â | Â |
day-1 | 0.60 | 1.00 | Â | Â | Â | Â |
day-2 | 0.38 | 0.60 | 1.00 | Â | Â | Â |
day-3 | 0.31 | 0.38 | 0.60 | 1.00 | Â | Â |
day-4 | 0.28 | 0.31 | 0.38 | 0.60 | 1.00 | Â |
day-5 | 0.28 | 0.28 | 0.31 | 0.38 | 0.60 | 1.00 |
SO2 2nd differences [c(day) - 2 c(day-1) + c(day-2)] | day | day-1 | day-2 | day-3 | day-4 | day-5 |
day | 1.00 | Â | Â | Â | Â | Â |
day-1 | -0.51 | 1.00 | Â | Â | Â | Â |
day-2 | -0.06 | -0.51 | 1.00 | Â | Â | Â |
day-3 | 0.07 | -0.06 | -0.51 | 1.00 | Â | Â |
day-4 | -0.01 | 0.06 | -0.06 | -0.51 | 1.00 | Â |
day-5 | 0.01 | -0.01 | 0.06 | -0.06 | -0.51 | 1.00 |
PM10 concentrations c(day) | day | day-1 | day-2 | day-3 | day-4 | day-5 |
day | 1.00 | Â | Â | Â | Â | Â |
day-1 | 0.82 | 1.00 | Â | Â | Â | Â |
day-2 | 0.65 | 0.82 | 1.00 | Â | Â | Â |
day-3 | 0.53 | 0.65 | 0.82 | 1.00 | Â | Â |
day-4 | 0.46 | 0.53 | 0.65 | 0.82 | 1.00 | Â |
day-5 | 0.41 | 0.46 | 0.53 | 0.65 | 0.82 | 1.00 |
PM10 2nd differences [c(day) - 2 c(day-1) + c(day-2)] | day | day-1 | day-2 | day-3 | day-4 | day-5 |
day | 1.00 | Â | Â | Â | Â | Â |
day-1 | -0.46 | 1.00 | Â | Â | Â | Â |
day-2 | -0.04 | -0.46 | 1.00 | Â | Â | Â |
day-3 | -0.03 | -0.04 | -0.46 | 1.00 | Â | Â |
day-4 | 0.02 | -0.03 | -0.04 | -0.46 | 1.00 | Â |
day-5 | -0.01 | 0.02 | -0.03 | -0.04 | -0.46 | 1.00 |