About Accidental Pollution In River Basin

Neagu Beatrice Waters Directorate Buzau-Ialomita, branch of National Administration’’Romanian Waters’’ Buzau,

Abstract: Human activities concerned with the development and use of water resources, interfere with the hydrological cycle’s mechanisms and affect the quantity, quality, time and space distribution of the resource. The paper investigates the accidental pollution of the river Prahova. Main pollutants or other categories of pollutants, accidental pollution presents the same risks for aquatic ecosystems. Possible causes of groundwater pollution are: natural calamity, loss of pollutants out of reservoirs, ground pipes and arsons. The monitoring system in water field has target estimating of water quality evolution on river. Paper presents some users with specific problems, critical points, and operative measures for eliminate the causes and effects thereof.

Keywords: critical points, accidental pollution, pollutants, aquatic ecosystems

Prahova hydrographic basin is located in south –east of Romania having a reception surface of 3738 square kilometres and belongs to Ialomita hydrographic basin. Prahova river has the main water flow of basin and has a length of 193 km and a slope 5%0 , sinuozity coefficient 1,24. Refineries makes efforts for unpollution of groundwater but owing to leak on direction NW-SE, ‘’spot’’ is extend. In Prahova county, is drills for extraction of products at Astra Romana Refinery and SC Petrom SA-Petrobrazi. Without exactly source, diffuse pollution is in category of polllution dangerouse, because could not be forewarn or anticipated. Thawing of snow, rainfall over stored unchecking on banks of river or agricultural land with chemical fertilizers , passing of water over rocks with salted soluble are potential sources for pollution. Any industrial units could be considered potential pollutants in case of natural calamity, accident, damage or because operate error. I considered that only preventing measures of takes by economic units, increasing implication degrees and interesting by the environment problems could be lead at decreased number and gravity of accidental pollutions. In year 2002, on registred 7 accidental pollutions, with small impact over watercourses: -with petroleum substances, on Dimbu river( village Corlatesti), on river(village ), on Lopatna river(village Carbunesti), on river Prahova(village Manesti), on river (village Sotrile). -one soda leaking on the platform with reactives of SC CAHIRO SA , in channel Iazul Morilor , Teleajen river and lead to intrerruption water supply of consumers. In year 2003, in county Prahova, was 2 situations with small impacts over ecosystems of watercourses, on Lopatna river , village Carbunesti and on river Dimbu, city Ploiesti. In year 2004, Saratel river was polluted in Pacureti zone , because draining of tank of oil wel. In any case of accidental pollution, interventions will be fast, taking account by the nature of pollutants, possibilities for interventions in zone. In downstream of the each potential pollutants, will be fixed points with all is necessary for one intervention on the river, for decreasing negatives effects of accidental pollutions. In downstream of the each potentially polluting water users take measures for zones will be realised a good oxigenate of water. In case with pollution with petroleum substances, will be build dams , will be scatter organic and manmade absorbents and will be organised intervention teams. Petroleum substances will be retrieve integral, for to avoid spreading of phenomenon. A method against pollution with phenols with efficiency for surface water is not discover yet. In case with pollution with anionic surfactants, eliminating of the negative effects will make with Al2(SO4)3 and Fe2(SO4)3.

Conclusions The water users are obliged to prepare and apply, if necessary, their own plans for the prevention and control of accidental pollution, that might occur as a result of their activity. Intentional pollution slall be punished. The downstream water users that suffered material damages caused by an upstream accidental pollution, or by the destruction of an upstream retention structure shall be entitled to indemnification from the natural or juristic person who is found guilty, pursuant to the law.