Scoped to one remediation method. Before = baseline samples matching the method's sample type; a phase the method doesn't have shows as “no data”.
Overall assessment
Phase-by-phase verdicts
Worst result per domain on each sampling date, grouped by remediation phase.
| Domain | Before Remediation | During Remediation | After Remediation | Trend | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
4.4.2023
water |
8.4.2025
water |
5.6.2025
water |
4.12.2025
water |
27.1.2026
water |
10.2.2026
water |
9.3.2026
water |
13.4.2026
water |
— | ||
| Ecotoxicology |
E
Daphnids |
D
A. fischeri 15 |
E
Daphnids |
D
Algae |
D
Algae |
D
Lettuce aquatic |
D
Lettuce aquatic |
D
Algae |
· | Stable |
| Chemistry |
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
· | · | · | Stable |
| Supportive methods provisional | — | |||||||||
| Shannon index | · | 5.96 | 5.96 | 6.68 | 6.04 | 6.9 | 6.47 | · | · | |
| Simpson index | · | 0.97 | 0.97 | 0.98 | 0.97 | 0.98 | 0.98 | · | · | |
| Respiration | · | Non-conf | Conf | Conf | · | · | · | Conf | · | |
| Nitrification | Non-conf | Non-conf | Non-conf | Non-conf | · | · | · | Conf | · | |
Each column is one sampling date; a cell shows the worst result recorded across that date's samples. A phase with no samples for the selected method shows as “—”. Supportive methods are shown for reference and do not yet move the overall stance.
Supportive methods evaluation
| Sample | Type | Method (phase) | Diversity (H′ / 1−D) | Nitrification | Respiration | Conformity |
|---|---|---|---|---|---|---|
| VZ1 | water | Before Remediation | — |
8.3% Within ±20%
Conforming |
— | Conforming |
| VZ2 | water | Before Remediation | — |
58.1% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
— | Nonconforming |
| VZ3 | water | Before Remediation | — |
56.4% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
— | Nonconforming |
| Baseline 1 | water | During Remediation | H′ 5.955 · 1−D 0.9661 |
26.7% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
QR 1.51 QR above 0.5 — verify the aerobic heterotrophic bacteria (AHB) count
Nonconforming |
Nonconforming |
| Baseline 2 | water | During Remediation | H′ 5.955 · 1−D 0.9661 |
49.7% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
QR 0.25 Acceptable — QR ≤ 0.5
Conforming |
Nonconforming |
| NYM3 135 days | water | During Remediation | H′ 6.6785 · 1−D 0.9819 |
36.5% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
QR 0 Acceptable — QR ≤ 0.5
Conforming |
Nonconforming |
| NYM3 189 days | water | During Remediation | H′ 6.0438 · 1−D 0.9735 | — | — | — |
| NYM3 203 days | water | During Remediation | H′ 6.9008 · 1−D 0.9822 | — | — | — |
| NYM3 230 days | water | During Remediation | H′ 6.4735 · 1−D 0.9812 | — | — | — |
| NYM3 265 days | water | During Remediation | — |
11.1% Within ±20%
Conforming |
QR 0.21 Acceptable — QR ≤ 0.5
Conforming |
Conforming |
| Sample | Type | Shannon (H′) | Simpson (1−D) |
|---|---|---|---|
| VZ1 | water | — | — |
| VZ2 | water | — | — |
| VZ3 | water | — | — |
| Sample | Type | Shannon (H′) | Simpson (1−D) |
|---|---|---|---|
| Baseline 1 | water | 5.955 | 0.9661 |
| Baseline 2 | water | 5.955 | 0.9661 |
| NYM3 135 days | water | 6.6785 | 0.9819 |
| NYM3 189 days | water | 6.0438 | 0.9735 |
| NYM3 203 days | water | 6.9008 | 0.9822 |
| NYM3 230 days | water | 6.4735 | 0.9812 |
| NYM3 265 days | water | — | — |
Biodiversity is read as a trend — rising Shannon / Simpson from the before stage onward indicates recovery. Expected levels per phase are in admin → Biology phase profiles.
| Sample | Type | Phase | QR | AHB (CFU/g) | Evaluation | Conformity |
|---|---|---|---|---|---|---|
| VZ1 | water | Before Remediation | — | — | — | — |
| VZ2 | water | Before Remediation | — | — | — | — |
| VZ3 | water | Before Remediation | — | — | — | — |
| Baseline 1 | water | During Remediation | 1.51 | — | QR above 0.5 — verify the aerobic heterotrophic bacteria (AHB) count | Nonconforming |
| Baseline 2 | water | During Remediation | 0.25 | — | Acceptable — QR ≤ 0.5 | Conforming |
| NYM3 135 days | water | During Remediation | 0 | — | Acceptable — QR ≤ 0.5 | Conforming |
| NYM3 189 days | water | During Remediation | — | — | — | — |
| NYM3 203 days | water | During Remediation | — | — | — | — |
| NYM3 230 days | water | During Remediation | — | — | — | — |
| NYM3 265 days | water | During Remediation | 0.21 | — | Acceptable — QR ≤ 0.5 | Conforming |
QR ≤ 0.5 acceptable. QR > 0.5 → check AHB: ≥ 10³ CFU/g = bioremediation not suitable (strongly inhibited); < 10³ = not suitable without microbial augmentation (bioaugmentation, repeat measurements, assess inhibition).
| Sample | Type | Phase | Inhibition / stimulation | Evaluation | Conformity |
|---|---|---|---|---|---|
| VZ1 | water | Before Remediation | 8.3% | Within ±20% | Conforming |
| VZ2 | water | Before Remediation | 58.1% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
| VZ3 | water | Before Remediation | 56.4% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
| Baseline 1 | water | During Remediation | 26.7% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
| Baseline 2 | water | During Remediation | 49.7% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
| NYM3 135 days | water | During Remediation | 36.5% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
| NYM3 189 days | water | During Remediation | — | — | — |
| NYM3 203 days | water | During Remediation | — | — | — |
| NYM3 230 days | water | During Remediation | — | — | — |
| NYM3 265 days | water | During Remediation | 11.1% | Within ±20% | Conforming |
The inhibition or stimulation of nitrification must not exceed ±20%. Values beyond this indicate a significant effect of the sample on the nitrifying microbial community.
Visual overall assessment
Each domain across the sampling timeline — colour shows the result; reading left→right shows the trend.
| Before Remediation | During Remediation | After Remediation | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
4.4.2023
water |
8.4.2025
water |
5.6.2025
water |
4.12.2025
water |
27.1.2026
water |
10.2.2026
water |
9.3.2026
water |
13.4.2026
water |
— | |
| A. fischeri 15 | C | D | C | C | C | A | B | B | · |
| A. fischeri 30 | C | D | C | C | C | A | A | B | · |
| Algae | D | D | D | D | D | C | C | D | · |
| Daphnids | E | D | E | D | C | C | C | B | · |
| Lettuce aquatic | D | C | D | D | D | D | D | D | · |
| Worst (per date) | E | D | E | D | D | D | D | D | · |
Result: Stable across phases
| Before Remediation | During Remediation | After Remediation | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
4.4.2023
water |
8.4.2025
water |
5.6.2025
water |
4.12.2025
water |
27.1.2026
water |
10.2.2026
water |
9.3.2026
water |
13.4.2026
water |
— | |
| Heavy Metals | High | High | High | High | High | High | · | · | · |
| Industrial Chemical | High | High | High | High | High | High | · | · | · |
| Others | None | None | None | None | None | None | · | · | · |
| Worst (per date) | High | High | High | High | High | High | · | · | · |
Result: Stable across phases
| Before Remediation | During Remediation | After Remediation | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
4.4.2023
water |
8.4.2025
water |
5.6.2025
water |
4.12.2025
water |
27.1.2026
water |
10.2.2026
water |
9.3.2026
water |
13.4.2026
water |
— | |
| Shannon index | · | 5.96 | 5.96 | 6.68 | 6.04 | 6.9 | 6.47 | · | · |
| Simpson index | · | 0.97 | 0.97 | 0.98 | 0.97 | 0.98 | 0.98 | · | · |
| Respiration | · | Non-conf | Conf | Conf | · | · | · | Conf | · |
| Nitrification | Non-conf | Non-conf | Non-conf | Non-conf | · | · | · | Conf | · |
Result: Not enough phases to compare
Conclusion
Auto-generated draftBased on the most recent data (During Remediation) for Ferrara – ER-site, the site is assessed as: Remediation recommended. Chemistry: dominant level is High Risk (40 high-risk, 6 risk, 56 no-risk, 83 unclassified of 185 measurements). Ecotoxicology: dominant category is E (Very high toxicity). The most sensitive organism is Daphnids. Across the recorded phases, chemistry risk is stable across phases and ecotoxicity is stable across phases. Recommendation: the contamination level still warrants action — continue or adjust the remediation strategy, identify the main contaminant, and re-sample to confirm a downward trend. Biology / supportive methods (provisional): nitrification exceeds ±20% — significant effect on the nitrifying community. These indicators are shown for reference and do not yet affect the overall stance.