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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Stormwater treatment implications : Settling alone is insufficient for runoff treatment, due to the relatively high level of dissolved pollution with relatively low settling velocities.  2, record 1, English, - dissolved%20pollution

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

La réglementation européenne oblige depuis quelques années les industriels et les collectivités à épurer leurs eaux usées avant rejet dans la nature, mais les usines d'épuration n'éliminent pas totalement la pollution, en particulier la pollution dissoute (phosphate des lessives, par exemple).  2, record 1, French, - pollution%20dissoute

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

[The organic matter] budget indicates that tributary inputs in reaches #1 and #3 should be investigated as point sources of dissolved organic pollution to the river.  2, record 2, English, - dissolved%20organic%20pollution

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

La demande chimique en oxygène (DCO) représente la quantité d'oxygène nécessaire pour oxyder totalement la pollution organique dissoute et particulaire, biodégradable et non biodégradable en CO [carbone organique].  2, record 2, French, - pollution%20organique%20dissoute

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

The curve resulting from plotting the concentration of dissolved oxygen against distance or time of flow in a river downstream from a source of pollution that has an oxygen demand.  2, record 3, English, - oxygen%2Dsag%20curve

Record number: 3, Textual support number: 1 OBS

oxygen sag curve: term and definition standardized by ISO.  1, record 3, English, - oxygen%2Dsag%20curve

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Courbe résultant du tracé de la chute de la concentration en oxygène dissous en fonction de la distance ou du temps d'écoulement du flux d'une rivière en aval d'une source de pollution ayant une demande chimique en oxygène.  2, record 3, French, - courbe%20en%20sac%20d%27oxyg%C3%A8ne%20dissous

Record number: 3, Textual support number: 1 OBS

courbe dite «en sac» : terme et définition normalisés par l'ISO.  1, record 3, French, - courbe%20en%20sac%20d%27oxyg%C3%A8ne%20dissous

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 DEF

Curva resultante al representar la concentración de oxígeno disuelto, en función de la distancia o el tiempo de flujo en un río que baja desde una fuente de contaminación que tiene una demanda de oxígeno.  1, record 3, Spanish, - curva%20SAG%20de%20ox%C3%ADgeno

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Zones of Water Pollution. Discharge or mixing zone is where pollutants enter the stream or the river. If the waste is dark, it will make the water dark, increase its temperature and subsequently oxygen levels will drop. The rate of discharge should not be stronger than flow of the stream. In zone of degradation oxygen levels drop from BOD(biological/biochemical oxygen demand). Zone of active decomposition is characterized by the following changes : 1) dissolved oxygen(DO) will be at its absolute minimum; 2) odors and gases bubbling up. In the zone of recovery the river will slowly restore its oxygen through aeration process. The anaerobic conditions will disappear. Nitrites will be converted into nitrates and stimulate growth of algae, which will produce oxygen through process of photosynthesis. In zone of clean water oxygen levels are really elevated. And BOD is almost satisfied.  1, record 4, English, - zone%20of%20degradation

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Zone située en aval d'un rejet d'eaux usées dans laquelle s'effectue la première phase de dégradation de la matière organique.  1, record 4, French, - zone%20de%20d%C3%A9gradation

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Primera zona del proceso de autopurificación de un efluente contaminado. Se caracteriza por la presencia de materias contaminantes flotantes. Su contenido de oxígeno disminuye pero no se agota inmediatamente.  1, record 4, Spanish, - zona%20de%20degradaci%C3%B3n

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Zones of Water Pollution. Discharge or mixing zone is where pollutants enter the stream or the river. If the waste is dark, it will make the water dark, increase its temperature and subsequently oxygen levels will drop. The rate of discharge should not be stronger than flow of the stream. In zone of degradation oxygen levels drop from BOD(biological/biochemical oxygen demand). Zone of active decomposition is characterized by the following changes : 1) dissolved oxygen(DO) will be at its absolute minimum; 2) odors and gases bubbling up. In the zone of recovery the river will slowly restore its oxygen through aeration process. The anaerobic conditions will disappear. Nitrites will be converted into nitrates and stimulate growth of algae, which will produce oxygen through process of photosynthesis. In zone of clean water oxygen levels are really elevated. And BOD is almost satisfied.  1, record 5, English, - zone%20of%20recovery

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Zone où la dégradation de la matière organique est presque terminée et où un retour aux conditions aérobies se fait grâce à un nouvel apport d'oxygène.  1, record 5, French, - zone%20de%20r%C3%A9cup%C3%A9ration

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Zona de apariencia más favorable caracterizada por la reaparición gradual de oxígeno disuelto y por la disminución de los sólidos orgánicos.  1, record 5, Spanish, - zona%20de%20recuperaci%C3%B3n