ANALYSIS OF SEA WATER POLLUTION IN COASTAL MARINE DISTRICT TUBAN TO THE QUALITY STANDARDS OF SEA WATER WITH USING STORET METHOD

The sea water is a component that interacts with the terrestrial environment, where sewage from the land will lead to the sea. Waste containing these pollutants will enter into coastal waters and marine ecosystems. Partially soluble in water, partially sinks to the bottom and was concentrated sediment, and partly into the body tissues of marine organisms. This study was conducted to determine the level of pollution of sea water on the coast in the district of Tuban. This research was conducted in the Coastal Water Tuban, East Java. The main material used in research on Analysis of Water Pollution in Coastal Sea on Tuban. The method used in this research is using storet method and compared to the quality standards of the Environment Decree No. 51 in 2004. Based on the analysis of testing at five sampling point’s seawater around Bodies Tuban, obtained by sea water quality measurement results either in physics, chemistry, and microbiology varied. The level of pollution of sea water around Coastal Tuban obtained by using Storet Method average value of analysis is -4.2 included in class B are lightly blackened, while using values obtained Pollution Index average pollution index of 3.60 is included in the category lightly blackened.


INTRODUCTION
The territorial waters of the coastal one highly productive ecosystems in marine waters.However behind its potential, development usually also mainly concentrated in coastal areas, so that often creates a negative impact on the potential of these resources, human activity in exploiting natural resources on it, such as industry, agriculture, fisheries, mining, navigation, and tourism are often multiple overlap, so it is not uncommon benefit or value to the ecosystem will be down.These activities often produce waste pollutants harmful to the marine waters life of or destroy fishes habitat in coastal areas.The impact on coastal communities, fishermen and farmers lose fields or jobs.Miller (2004), defines that the pollution is spreading the addition of air, water and soil, or food that endangers the health, resilience or activities of humans or other living organisms.Meanwhile, based on Law No. 23, 1997(Anonymous, 2006), pollution is the entry or the entry living creatures, substances, energy or other components into the environment with human activities so that quality decreases to a certain level which causes the environment not to work as intended.
In this research, researchers to test the levels of quality of coastal waters are among others: physical parameters, temperature and TSS, chemical parameters, pH, salinity, DO, BOD, COD, ammonia and Heavy Metal, while the biological parameter that is Plankton.The Selection of test parameters done to determine the level of contamination of coastal areas in the district of Tuban.
The research analyzes the level of pollution of sea water in the coastal district of Tuban.
The quality standard seawater using storet methods expected to provide information about the level of Water Pollution of the Sea in Coastal Tuban, especially those located near where the fish auction place Cross, Island Temple Shrine Tuban, Jenu New Terminal, Cement Port Tambak Boyo, and the fish auction place Feather Bancar.The thing to do is check the TSS, ammonia, DO, BOD, COD, Iron, Lead and Plankton to do in Water Quality Laboratory Faculty of Fisheries and Marine, UNIROW Tuban.Measurement of temperature using a thermometer.At the end there is a hole termometar to be associated with a rope so that when the thermometer measurements are not in direct contact with your hands because it can affect the measurement results, when measuring the position of the thermometer turned toward the sun as it can affect the measurement results.

MATERIALS AND METHODS
Used of direct thermometer dipped in water and immediately read the results seen red color border wait until it stops at number show the measurement results.d.A brightness A brightness measurement using a tool called secchidisk.Secchidisk to be put into the water slowly and see a color of the dish until no visible or vague there look at how much added.The units of measure the brightness usually use centimeters (cm).Whereas examination of water quality parameters of chemical, biological, and dissolved metals carried exsitu (at the laboratory).The water samples were used for measurements previously done exsitu preservation with the way samples were stored in a cool box (low temperature) and immediately taken to the laboratory for the quality of water taken unchanged from it is original nature.Parameters measured exsitu is Ammonia, BOD, COD, Lead Pb and Fe Iron.
Location of the research (sampling) is carried out in the waters around the industry, the fish auction place, and Coast Tourism.Location purposive sampling method is determining the location based on their specific purpose and in accordance with the consideration of the researchers themselves that represent the population (Arikunto, 2006), and is done by tracking the use of GPS (General Position Sample) at location research it is waters Tuban Regency East Java Province.The tracking of results taken five points to test the sea water quality analysis.There for it, the determination of the research station have been selected based for the type of activities on the beach of Tuban.

Storet Method
The research is, data analysis of the quality of sea water around Coastal Tuban will be compared with the quality standards of the Environment Decree No. 51 of 2004 on marine water quality standard for marine biotas.If the test of results do not exceed the quality standard parameter then given a score of 0, while the value of the test parameters have exceeded the quality standard in terms of the measurement results > quality standards, it is given a score according to Table 4.The total score Storet method relies on a number of parameters that have a value test exceeds the specified threshold, the more of parameter values that exceed the threshold are allowed then the value will be even greater score.COD 1082COD .67 1179COD .33 1256COD 1282COD .67 1132.67 10 108.27 117.93 125.60 128.27 113.27 11.17 11.36 11.49 11.54 .67 10 108.27 117.93 125.60 128.27 113.27 11.17 11.36 11.49 11.54

Indeks Pencemaran
Based on the results of data analysis using Pollution Index, the result is different in each of the sampling seawater points.Coastal seawater pollution index Tuban obtain a score average (PIR) 3.60, with reference to the quality standards of the Environment Decree No. 51 of 2004 on seawater quality standard for marine lifes can be summed seawater around Tuban coastal Beach classified in categories lightly blackened intended for marine lifes.
From the data analysis can be described some discussion, namely, from 5 samples of sea water taken at 5 points scattered around Coastal Tuban showed seawater quality measurements that is vary each parameter, at some point the decision shows fluctuations.Based on quality standards decree LH No 51 of 2004 the designation of marine lifes, the parameters that exceed the threshold of which total coliform in point 5, the parameters of TSS, DO, COD and Ammonia in five sampling points, high COD and DO in water samples caused by activities of coastal communities that include disposal of garbage in the seawater to the river aquaculture waste disposal, waste disposal of the fish auction.
As for the total coliform parameter values that exceed the highest quality standards are at the point of 1,2, and 3, this is due to location along two sampling points close to the estuary zone.There is sewage from the community, and cultivating, which flows down to the sea.Because that is where activities such as bathing, washing, and waste water, so that the value of total coliform exceeded the quality standard.

Table 1 .
The materials used in this research

Table 2 .
The tools of used in this research

Table 4 .
Sea Water Quality Measurement Results of Water Tuban district.

Table 5 .
Results of Data Analysis Sea water Quality Measurement with Storet Method.

Table 6 .
Results of Data Analysis Pollution Index Method Based on the results of data analysis using Pollution Index, the result is different in each of the sampling seawater points.Coastal seawater pollution index Tuban obtain a score average (PIR) 3.60, with reference to the quality standards of the Environment Decree No. 51 of 2004 on seawater quality standard for marine lifes can be summed seawater around Tuban coastal Beach classified in categories lightly blackened intended for marine biotas.Based on the table 8 may be made Pollution Index Method diagram in Figure3below: Picture 1. Quality Water Score Pollution Index Method Ci/

Lij 1 Ci/Lij 2 Ci/Lij 3 Ci/Lij 4 Ci/Lij 5 baru baru baru baru baru
The low value of the DO indicates the number of microorganisms that use oxygen to decompose organic matter contained in water.DO low value is very dangerous for marine lifes because it would reduce the supply of oxygen and inhibit the growth of marine organisms.CONCLUSION1.Based on the analysis of testing at five sampling point's seawater around Tuban Beach, obtained to the seawater quality measurement results either in physics, chemistry, and microbiology varied.The quality of sea water in physics which includes temperature has an average value of the temperature measurement 30,68⁰C.not exceed the quality standards of the Environment Decree No. 51 of 2004 on sea water quality standard for marine biotas.While TSS Total Suspended Solid 351.2 ppm exceed the quality standards.Results of testing chemical parameters with an average value of 23.4 PROMIL include salinity, BOD 14.8 ppm, pH of 7.16, qualify the quality standards set.In contrast to the value of ammonia ineligible quality standards at some point is the point 1,2 and 3 with a value of 0.65 ppm, 0.40 ppm, 0.36 ppm.danCOD with the average value of 1186.67 ppm.As for microbiological parameters that meet the quality standards plankton Minister of Environment Decree No. 51 of 2004 on marine water quality standard for marine biotas.2. Sources of pollutants that cause deterioration of seawater quality around the sea comes from the Tuban Beach, ship waste, waste from fish auctions, garbage disposal waste to the sea and residential areas in the Coastal Tuban.3. The level of pollution sea water around Coastal Tuban using Storet method obtained an average value of analysis is -4.2 included in class B are lightly blackened, while using values obtained Pollution Index average pollution index of 3.60, including in the category of lightly blackened.