TABLE 2 |.
Summary of segments with improving and degrading trends in estimated attainment deficit for Chesapeake Bay dissolved oxygen criterion in the long-term period (1985–2016) and short-term period (2000–2016).
| DU | Trend | Period | p < 0.05 | p < 0.1 | p < 0.25 | p < 1.0 | Segments with p < 0.1 |
|---|---|---|---|---|---|---|---|
| OW (n = 92) | Improving | 1985–2016 | 4 | 7 | 12 | 18 | CB6PH; CB7PH; PAXMH; POCOH_VA; POTTF_DC; SASOH; YRKPH |
| Improving | 2000–2016 | 15 | 15 | 18 | 25 | CHOMH1; CHOMH2; CHOOH; CHOTF; CRRMH; JMSTF1; NANOH; NANTF_DE; NANTF_MD; PAXMH; POCOH_VA; POTOH1_MD; POTTF_DC; RHDMH; WSTMH | |
| Degrading | 1985–2016 | 8 | 10 | 11 | 23 | CHOOH; CHOTF; CHSOH; CHSTF; PAXOH; PAXTF; POCTF; POTMH_VA; POTTF_VA; WICMH | |
| Degrading | 2000–2016 | 10 | 11 | 12 | 17 | ANATF_DC; ANATF_MD; BSHOH; CHSTF; EBEMH; PATMH; PAXTF; POTMH_VA; POTTF_VA; WBRTF; WICMH | |
| DW (n = 18) | Improving | 1985–2016 | 2 | 4 | 5 | 7 | CB5MH_MD; MAGMH; RPPMH; SOUMH |
| Improving | 2000–2016 | 4 | 5 | 6 | 10 | CB5MH_MD; MAGMH; PAXMH; RPPMH; SOUMH | |
| Degrading | 1985–2016 | 1 | 2 | 2 | 7 | CB3MH; CB5MH_VA | |
| Degrading | 2000–2016 | 1 | 1 | 2 | 3 | CB3MH | |
| DC (n = 10) | Improving | 1985–2016 | 1 | 1 | 2 | 4 | CHSMH |
| Improving | 2000–2016 | 3 | 4 | 4 | 7 | CB4MH; CB5MH_MD; CB5MH_VA; CHSMH | |
| Degrading | 1985–2016 | 2 | 2 | 2 | 5 | CB3MH; EASMH | |
| Degrading | 2000–2016 | 1 | 1 | 1 | 2 | RPPMH | |