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 |
19.12.2024
water |
14.1.2025
water |
20.2.2025
water |
8.4.2025
water |
6.5.2025
water |
5.6.2025
water |
8.7.2025
water |
7.8.2025
water |
30.10.2025
water |
4.12.2025
water |
10.2.2026
water |
||
| Ecotoxicology |
E
Daphnids |
D
Algae |
D
A. fischeri 15 |
E
A. fischeri 15 |
E
A. fischeri 15 |
D
Algae |
D
Algae |
D
Algae |
D
Algae |
E
Lettuce aquatic |
E
Daphnids |
E
Lettuce aquatic |
Stable |
| Chemistry |
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 0 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 1 ok
|
High
2 high · 0 risk · 0 ok
|
High
2 high · 0 risk · 0 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 | Improving | ||||||||||||
| Shannon index | · | 6.64 | · | · | 6.37 | 6.46 | 6.44 | 6.16 | 5.97 | 7.67 | · | 7.12 | |
| Simpson index | · | 0.98 | · | · | 0.98 | 0.98 | 0.98 | 0.98 | 0.97 | 0.99 | · | 0.99 | |
| Respiration | · | Non-conf | · | · | · | · | · | · | Non-conf | Conf | · | Conf | |
| Nitrification | Non-conf | · | · | · | · | · | · | · | · | Non-conf | · | Non-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 |
| First Starting baseline | water | During Remediation | H′ 6.6396 · 1−D 0.9794 | — |
QR 0.51 QR above 0.5 — verify the aerobic heterotrophic bacteria (AHB) count
Nonconforming |
Nonconforming |
| T2 | water | During Remediation | H′ 6.3737 · 1−D 0.9811 | — | — | — |
| T3 | water | During Remediation | H′ 6.4578 · 1−D 0.9778 | — | — | — |
| T4 | water | During Remediation | H′ 6.4365 · 1−D 0.9782 | — | — | — |
| T5 | water | During Remediation | H′ 6.1551 · 1−D 0.9791 | — | — | — |
| T6 | water | During Remediation | H′ 5.9665 · 1−D 0.9706 | — |
QR 0.64 QR above 0.5 — verify the aerobic heterotrophic bacteria (AHB) count
Nonconforming |
Nonconforming |
| NYM1 10 | water | During Remediation | H′ 7.6719 · 1−D 0.9865 |
25.3% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
QR 0.1 Acceptable — QR ≤ 0.5
Conforming |
Nonconforming |
| NYM1 369 days | water | After Remediation | H′ 7.1242 · 1−D 0.9871 |
47.8% Exceeds ±20% — significant effect on the nitrifying community
Nonconforming |
QR 0.03 Acceptable — QR ≤ 0.5
Conforming |
Nonconforming |
| Sample | Type | Shannon (H′) | Simpson (1−D) |
|---|---|---|---|
| VZ1 | water | — | — |
| VZ2 | water | — | — |
| VZ3 | water | — | — |
| Sample | Type | Shannon (H′) | Simpson (1−D) |
|---|---|---|---|
| First Starting baseline | water | 6.6396 | 0.9794 |
| T2 | water | 6.3737 | 0.9811 |
| T3 | water | 6.4578 | 0.9778 |
| T4 | water | 6.4365 | 0.9782 |
| T5 | water | 6.1551 | 0.9791 |
| T6 | water | 5.9665 | 0.9706 |
| NYM1 10 | water | 7.6719 | 0.9865 |
| NYM1 369 days | water | 7.1242 | 0.9871 |
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 | — | — | — | — |
| First Starting baseline | water | During Remediation | 0.51 | — | QR above 0.5 — verify the aerobic heterotrophic bacteria (AHB) count | Nonconforming |
| T2 | water | During Remediation | — | — | — | — |
| T3 | water | During Remediation | — | — | — | — |
| T4 | water | During Remediation | — | — | — | — |
| T5 | water | During Remediation | — | — | — | — |
| T6 | water | During Remediation | 0.64 | — | QR above 0.5 — verify the aerobic heterotrophic bacteria (AHB) count | Nonconforming |
| NYM1 10 | water | During Remediation | 0.1 | — | Acceptable — QR ≤ 0.5 | Conforming |
| NYM1 369 days | water | After Remediation | 0.03 | — | 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 |
| First Starting baseline | water | During Remediation | — | — | — |
| T2 | water | During Remediation | — | — | — |
| T3 | water | During Remediation | — | — | — |
| T4 | water | During Remediation | — | — | — |
| T5 | water | During Remediation | — | — | — |
| T6 | water | During Remediation | — | — | — |
| NYM1 10 | water | During Remediation | 25.3% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
| NYM1 369 days | water | After Remediation | 47.8% | Exceeds ±20% — significant effect on the nitrifying community | Nonconforming |
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 |
19.12.2024
water |
14.1.2025
water |
20.2.2025
water |
8.4.2025
water |
6.5.2025
water |
5.6.2025
water |
8.7.2025
water |
7.8.2025
water |
30.10.2025
water |
4.12.2025
water |
10.2.2026
water |
|
| A. fischeri 15 | C | C | D | E | E | C | C | C | C | D | D | D |
| A. fischeri 30 | C | C | C | E | E | C | C | C | C | D | D | D |
| Algae | D | D | D | D | D | D | D | D | D | D | D | D |
| Daphnids | E | D | D | D | E | D | D | D | D | D | E | D |
| Lettuce aquatic | D | C | C | C | C | C | C | C | C | E | D | E |
| Worst (per date) | E | D | D | E | E | D | D | D | D | E | E | E |
Result: Stable across phases
| Before Remediation | During Remediation | After Remediation | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
4.4.2023
water |
19.12.2024
water |
14.1.2025
water |
20.2.2025
water |
8.4.2025
water |
6.5.2025
water |
5.6.2025
water |
8.7.2025
water |
7.8.2025
water |
30.10.2025
water |
4.12.2025
water |
10.2.2026
water |
|
| Heavy Metals | High | High | High | High | High | High | High | High | High | High | High | · |
| Industrial Chemical | High | High | High | High | High | High | High | High | High | High | High | · |
| Others | None | None | — | None | None | — | — | None | None | None | None | · |
| Worst (per date) | High | High | High | High | High | High | High | High | High | High | High | · |
Result: Stable across phases
| Before Remediation | During Remediation | After Remediation | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
4.4.2023
water |
19.12.2024
water |
14.1.2025
water |
20.2.2025
water |
8.4.2025
water |
6.5.2025
water |
5.6.2025
water |
8.7.2025
water |
7.8.2025
water |
30.10.2025
water |
4.12.2025
water |
10.2.2026
water |
|
| Shannon index | · | 6.64 | · | · | 6.37 | 6.46 | 6.44 | 6.16 | 5.97 | 7.67 | · | 7.12 |
| Simpson index | · | 0.98 | · | · | 0.98 | 0.98 | 0.98 | 0.98 | 0.97 | 0.99 | · | 0.99 |
| Respiration | · | Non-conf | · | · | · | · | · | · | Non-conf | Conf | · | Conf |
| Nitrification | Non-conf | · | · | · | · | · | · | · | · | Non-conf | · | Non-conf |
Result: Biodiversity rising across phases
Conclusion
Auto-generated draftBased on the most recent data (After Remediation) for Ferrara – ER-site, the site is assessed as: Remediation recommended. Chemistry: no classified measurements available for this phase. Ecotoxicology: dominant category is E (Very high toxicity). The most sensitive organism is Lettuce aquatic. 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): biodiversity rising across phases; nitrification exceeds ±20% — significant effect on the nitrifying community. These indicators are shown for reference and do not yet affect the overall stance.