Miljöpåverkan
Miljöinformationen för xylometazolin är framtagen av företaget Haleon Denmark för Otrinex, Otrivin Comp, Otrivin®, Otrivin® Menthol (utan konserveringsmedel), Otrivin® utan konserveringsmedel
Miljörisk:
Användning av xylometazolin har bedömts medföra försumbar risk för miljöpåverkan.
Nedbrytning:
Xylometazolin är potentiellt persistent.
Bioackumulering:
Xylometazolin har låg potential att bioackumuleras.
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Detaljerad miljöinformation
Environmental Risk Classification
Predicted Environmental Concentration (PEC)
PEC is calculated according to the following formula:
PEC (μg/L) = (A*109*(100-R)/(365*P*V*D*100)
PEC = 0.027 μg/L
Where:
A = 199,81 kg (total sold amount API in Sweden year 2022, derived from data from IQVIA). Reduction of A may be justified based on metabolism data.
R = 0% removal rate (conservatively, it has been assumed there is no loss by adsorption to sludge particles, by volatilization, hydrolysis or biodegradation)
P = number of inhabitants in Sweden = 10*106
V (L/day) = volume of wastewater per capita and day = 200 (ECHA default) (Reference 1)
D = factor for dilution of waste water by surface water flow = 10 (ECHA default) (Reference 1)
Predicted No Effect Concentration (PNEC)
Ecotoxicological studies:
Green algae: EC50 = 2.03 mg/L (Desmodesmus subspicatus, 72 h (growth rate), (OECD 201) (Reference 2)
Daphnia acute toxicity: EC50 = 5.63 mg/L (Daphnia magna, 48h, OECD 202) (Reference 2)
Fish acute toxicity: LC50 = 71 mg/L (Rainbow trout (Oncorhynchus mykiss), 96h, OECD203) (Reference 2)
Bacterial Respiration Inhibition: IC20 = 90 mg/L (activated sludge, 0.5h, OECD 209) (Reference 2)
The PNEC is based on the following data:
PNEC (µg/l) = lowest acute EC50 / 1,000, where 1,000 is the assessment factor used.
An EC50 of 2.03 mg/l for green algae has been used for this calculation
PNEC = 2,030 µg/L /1000 = 2.03 µg/l
PNEC (μg/L) = lowest NOEC/1,000, where 1000 is the assessment factor applied for three short-term EC50s. EC50 for green algae (= 2.03 mg/L) has been used for this calculation since it is the most sensitive of the three tested species.
Environmental risk classification (PEC/PNEC ratio)
PEC/PNEC = 0.027/2.03 = 13,3 x 10-3, i.e. PEC/PNEC ≤ 0.1 which justifies the phrase “Use of Xylometazoline has been considered to result in insignificant environmental risk.”
Environmental fate studies:
Degradation:
Degradation: < 10% (aerobic, 28d, 20-24°C, OECD 301A) (Reference 2)
This substance is not readily biodegradable.
Bioaccumulation
Partition Coefficient: log Kow 2.84 (OECD107) (Reference 2)
Justification of chosen bioaccumulation phrase:
Since log Kow < 4, the substance has low potential for bioaccumulation.
PBT/vPvB assessment
Xylometazoline does not fulfil the criteria for PBT and/or vBvP.
All three properties, i.e. ‘P’, ‘B’ and ‘T’ are required in order to classify a compound as PBT (Reference 1). Xylometazoline does not fulfil the criteria for PBT and/or vBvP based on log Kow < 4.
References
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ECHA, European Chemicals Agency. 2008 Guidance on information requirements and chemical safety assessment.
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Safety Data Sheet. Xylometazoline hydrochloride Version No.23. Fagron UK Ltd, July 2014.