| 筑豊高校 | 直方市役所 | 下境小学校 | 直方第三中学校 | |
| 年・月 | 降下煤塵量 （Ｔ／Ｋ㎡／月） |
降下煤塵量 （Ｔ／Ｋ㎡／月） |
降下煤塵量 （Ｔ／Ｋ㎡／月） |
降下煤塵量 （Ｔ／Ｋ㎡／月） |
| 1995/4/1 | 6.293 | 5.011 | 6.237 | 7.524 |
| 1995/5/1 | 3.977 | 5.185 | 5.243 | 6.572 |
| 1995/6/1 | 5.081 | 4.961 | 5.120 | 9.950 |
| 1995/7/1 | 2.950 | 2.200 | 4.915 | 5.344 |
| 1995/8/1 | 3.258 | 3.553 | 3.728 | 4.610 |
| 1995/9/1 | 4.857 | 3.777 | 4.048 | 9.306 |
| 1995/10/1 | 3.497 | 3.586 | 4.211 | 5.483 |
| 1995/11/1 | 4.094 | 3.563 | 4.042 | 4.952 |
| 1995/12/1 | 3.334 | 3.664 | 5.169 | 4.373 |
| 1996/1/1 | 4.391 | 4.473 | 5.448 | 4.659 |
| 1996/2/1 | 4.752 | 4.894 | 5.812 | 5.853 |
| 1996/3/1 | 6.757 | 3.693 | 4.710 | 7.930 |
| 1996/4/1 | 3.675 | 4.005 | 4.556 | 10.280 |
| 1996/5/1 | 4.973 | 4.440 | 4.526 | 5.992 |
| 1996/6/1 | 3.728 | 2.659 | 4.834 | 4.906 |
| 1996/7/1 | 5.503 | 3.682 | 4.525 | 8.739 |
| 1996/8/1 | 5.267 | 3.489 | 6.130 | 9.871 |
| 1996/9/1 | 4.834 | 3.524 | 7.778 | 5.331 |
| 1996/10/1 | 3.354 | 2.480 | 4.202 | 3.394 |
| 1996/11/1 | 4.395 | 2.884 | 5.549 | 5.122 |
| 1996/12/1 | 6.079 | 4.261 | 6.209 | 5.917 |
| 1997/1/1 | 6.545 | 3.810 | 5.709 | 5.872 |
| 1997/2/1 | 5.028 | 3.899 | 5.023 | 5.173 |
| 1997/3/1 | 4.294 | 3.643 | 4.947 | 3.805 |
| 1997/4/1 | 5.402 | 3.002 | 4.450 | 4.424 |
| 1997/5/1 | 2.484 | 1.057 | 2.104 | 2.329 |
| 1997/6/1 | 5.477 | 4.041 | 5.012 | 5.631 |
| 1997/7/1 | 3.068 | 1.382 | 2.045 | 2.360 |
| 1997/8/1 | 0.620 | 1.064 | 0.865 | 0.575 |
| 1997/9/1 | 3.585 | 3.226 | 3.364 | 3.982 |
| 1997/10/1 | 2.484 | 2.370 | 2.571 | 2.542 |
| 1997/11/1 | 2.058 | 0.880 | 1.752 | 2.767 |
| 1997/12/1 | 1.619 | 0.500 | 0.926 | 2.454 |
| 1998/1/1 | 2.809 | 4.266 | 4.561 | 4.200 |
| 1998/2/1 | 4.147 | 3.586 | 4.759 | 4.386 |
| 1998/3/1 | 4.187 | 3.039 | 5.423 | 4.281 |
| 1998/4/1 | 2.008 | 5.215 | 5.430 | 4.793 |
| 1998/5/1 | 2.436 | 2.828 | 5.230 | 3.560 |
| 1998/6/1 | 3.003 | 2.610 | 4.728 | 1.980 |
| 1998/7/1 | 2.692 | 2.137 | 4.063 | 2.793 |
| 1998/8/1 | 1.512 | 1.418 | 2.148 | 1.984 |
| 1998/9/1 | 2.421 | 1.667 | 3.040 | 2.897 |
| 1998/10/1 | 1.628 | 1.137 | 2.174 | 1.664 |
| 1998/11/1 | 2.367 | 1.759 | 2.704 | 1.935 |
| 1998/12/1 | 2.270 | 2.506 | 2.501 | 2.143 |
| 1999/1/1 | 2.319 | 2.279 | 2.656 | 2.239 |
| 1999/2/1 | 3.345 | 3.300 | 3.609 | 4.430 |
| 1999/3/1 | 4.321 | 2.845 | 3.787 | 4.268 |
| 1999/4/1 | 2.783 | 1.372 | 1.384 | 2.465 |
| 1999/5/1 | 1.114 | 1.216 | 2.585 | 1.761 |
| 1999/6/1 | 0.731 | 0.955 | 0.887 | 0.000 |
| 1999/7/1 | 1.775 | 1.515 | 2.158 | 0.000 |
| 1999/8/1 | 1.180 | 0.698 | 1.438 | 0.000 |
| 1999/9/1 | 3.195 | 1.735 | 2.650 | 3.745 |
| 1999/10/1 | 1.300 | 1.163 | 1.242 | 1.088 |
| 1999/11/1 | 1.076 | 0.828 | 1.038 | 1.498 |
| 1999/12/1 | 3.153 | 2.409 | 2.789 | 2.899 |
| 2000/1/1 | 3.416 | 1.480 | 2.343 | 2.071 |
| 2000/2/1 | 2.166 | 1.542 | 2.259 | 1.563 |
| 2000/3/1 | 5.620 | 4.187 | 5.046 | 4.773 |
| 2000/4/1 | 2.480 | 1.583 | 1.892 | 2.073 |
| 2000/5/1 | 1.090 | 1.451 | 4.099 | 0.721 |
| 2000/6/1 | 0.638 | 0.923 | 1.281 | 0.833 |
| 2000/7/1 | 0.438 | 0.248 | 0.501 | 0.293 |
| 2000/8/1 | 1.778 | 1.531 | 1.303 | 1.642 |
| 2000/9/1 | 2.324 | 2.334 | 0.000 | 2.551 |
| 2000/10/1 | 3.515 | 2.454 | 1.834 | 2.889 |
| 2000/11/1 | 2.350 | 1.600 | 2.455 | 2.044 |