17:
1517:
188:
memory, attention, language, and fine motor and visual spatial skills in children that have been exposed to methylmercury in the womb. Methylmercury also causes a number of problems in adults, including impairment of the peripheral vision,"pins and needles" feelings, usually in the hands, feet, and around the mouth, lack of coordination of movements, impairment of speech, hearing, walking, and muscle weakness.
197:
of the water-body in question, and the age, size, and types of food the fish eats. Birds and mammals that eat fish are the most affected in the ecosystem because of their placement as predators in the food chain. Effects of methylmercury exposure on wildlife include death, as well as reduced fertility, slower growth and development, and abnormal behaviors that can drastically effect the animals survival.
1505:
209:(SCVWD) is not only the county’s water wholesaler, but is also the steward of all the rivers, streams, and reservoirs for the area. The SCVWD reached an agreement with the San Francisco Bay Regional Water Quality Control Board by which a $ 1 million long-term project was funded in order to reduce the levels of mercury contamination in the Guadalupe watershed, including all areas from the upper
345:
196:
Methylmercury that bioaccumulates in fish and the fish and other animals that eat them can reach harmful levels very quickly. Just how high these levels are depends on several factors, such as local non-air releases of mercury, naturally occurring mercury in soils, physical and biological properties
187:
Methylmercury is known for impairing neurological development in fetuses, infants, and small children. Exposure in the womb from a mother's consumption of contaminated fish and shellfish can harm a baby's newly developing brain and nervous system. There are notable impacts on cognitive thinking,
163:
is an effective magnet for gold, miners during the Gold Rush would regularly line their sluices with mercury to amalgamate the gold out. An estimated 6,500 tons of mercury was lost in the system of creeks and rivers along the coast between 1850 and 1920, and is still being detected today in the
213:
all the way to the San
Francisco Bay. A survey was initiated in September 2003 in order to find adequate methods of disposing of mercury deposits. The disposal of these deposits is being funded by the California State Cleanup and Abatement Account.
1140:
1412:
743:
818:
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53:
44:(indicated below, with surrounding counties in red). Essentially, all the water from the creeks and rivers that make up the Guadalupe watershed, including water from
828:
515:
167:
The effects of mercury on aquatic environments are very complex and create a number of health and safety risks. The most dangerous effect is its conversion into
545:
233:
Prenatal methyl mercury exposure from fish consumption and child development: A review of evidence and perspectives from the
Seychelles Child Development Study
171:
by bacteria in rivers and lakes, which is in fact a more toxic substance than plain mercury. Methylmercury has a capacity to be taken in by insects and other
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778:
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Holocene paleoclimate records from a large
California estuarine system and its watershed region: linking watershed climate and bay conditions
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and its effects on surrounding citizens and wildlife is a major concern for the area, and monitored intensively. Because
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48:, flows into the Guadalupe River, and then flows downstream into the San Francisco Bay at the Alviso Slough in
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833:
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40:, its tributary streams, reservoirs or other bodies of water which all eventually gets carried into the
1437:
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210:
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136:
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725:
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670:
640:
123:
The area covered by the
Guadalupe River and its tributaries spreads over the neighboring cities of
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61:
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264:. Size-dependence of the potential for metal biomagnification in early life stages of marine fish
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29:
81:
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510:
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445:
364:
302:
160:
101:
41:
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1200:
1185:
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871:
690:
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555:
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156:
85:
1306:
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1021:
951:
876:
695:
625:
409:
229:
Davidson, Philip W.,Myers, Gary J.,Weiss, BernardShamlaye, Conrad F., Cox, Christopher;
1402:
1377:
1347:
1190:
1180:
1042:
700:
585:
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33:
16:
179:, the methylmercury concentration increases the further up the food chain it reaches.
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1006:
961:
660:
620:
610:
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485:
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172:
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which the fish eat, which are in turn consumed by humans. Through this process of
1407:
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236:
Malamud-Roam, Frances P., Ingram, B. Lynn, Hughes, Malcolm, Florsheim, Joan L.;
117:
109:
45:
28:
consists of 170 square miles (400 km) of land within northern
California's
243:
Ng, Daniel Kwok-Keung, Chan, Chung-Hong, Soo, Man-Ting, Lee, Robert Shing-Yan;
1457:
1382:
966:
455:
369:
271:
250:
Low-level chronic mercury exposure in children and adolescents: Meta-analysis
255:
Illinois
Department of Public Health Announces 2007 Consumption Advisory
15:
164:
water, animal life, and riverbeds of these affected tributaries.
151:
The
Guadalupe watershed was an area of high activity during the
275:
262:
Environmental
Toxicology and Chemistry 26 (4): 787-794 APR 2007
52:. The Guadalupe watershed's main tributaries include
1335:
1267:
1234:
1121:
1030:
857:
734:
433:
352:
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84:. Six major reservoirs exist in the watershed:
829:San Francisco Maritime National Historical Park
287:
201:Santa Clara Valley Water District involvement
8:
1490:Transportation in the San Francisco Bay Area
1543:Landforms of Santa Clara County, California
1469:San Francisco Estuary and Watershed Science
294:
280:
272:
779:Emeryville Crescent State Marine Reserve
1548:Landforms of the San Francisco Bay Area
1413:Conservation and Development Commission
1373:U.S. Army Corps of Engineers Bay Model
804:Antioch Dunes National Wildlife Refuge
749:San Pablo Bay National Wildlife Refuge
764:Hayward Shoreline Interpretive Center
7:
744:Don Edwards National Wildlife Refuge
819:National Estuarine Research Reserve
711:Stockton Deepwater Shipping Channel
849:Palo Alto Baylands Nature Preserve
706:Sacramento–San Joaquin River Delta
14:
471:Creeks (discharging into the Bay)
207:Santa Clara Valley Water District
1516:
1515:
1503:
551:Arroyo Corte Madera del Presidio
343:
799:Point Pinole Regional Shoreline
794:Brooks Island Regional Preserve
784:Point Isabel Regional Shoreline
774:McLaughlin Eastshore State Park
754:Eden Landing Ecological Reserve
36:from this area drains into the
1259:San Francisco Bay Ferry (WETA)
1:
1428:Citizens for East Shore Parks
1393:Golden Gate Biosphere Reserve
839:Oyster Bay Regional Shoreline
257:.Copyright 2007 HT Media Ltd.
1292:Hunters Point Naval Shipyard
844:Big Break Regional Shoreline
814:Middle Harbor Shoreline Park
809:Coyote Point Recreation Area
1553:San Francisco Bay watershed
238:Quaternary Science Reviews.
1569:
1297:Mare Island Naval Shipyard
1244:Angel Island–Tiburon Ferry
769:Crown Memorial State Beach
759:Hayward Regional Shoreline
341:
1498:
26:Guadalupe River watershed
1312:Oyster Point Marina/Park
1141:Eastern span replacement
246:Pediatrics International
1463:San Francisco Baykeeper
1363:San Leandro Oyster Beds
1433:Friends of Five Creeks
721:Laguna Creek Watershed
646:Marin (Alameda County)
21:
1418:The Watershed Project
1398:Cosco Busan oil spill
1277:Port of San Francisco
1249:Blue & Gold Fleet
1164:Dumbarton Rail Bridge
1136:San Francisco–Oakland
824:China Camp State Park
686:Clifton Court Forebay
681:Straits and estuaries
405:Richmond Inner Harbor
192:Environmental effects
147:Mercury contamination
20:The Calero Reservoir.
19:
1438:Urban Creeks Council
1302:Port of Redwood City
1221:Posey/Webster Street
496:Coyote (Santa Clara)
211:Santa Cruz Mountains
153:California Gold Rush
120:on Los Gatos Creek.
1475:Estuary Partnership
1148:Richmond–San Rafael
726:Guadalupe watershed
676:Lafayette Reservoir
671:Calaveras Reservoir
641:Fluvius Innominatus
330:List of tributaries
260:Zhang L., Wang W.X.
155:, and as a result,
114:Lexington Reservoir
94:Guadalupe Reservoir
1448:Greenbelt Alliance
1368:Richmond Shipyards
1358:Humphrey the Whale
1324:Foster City Marina
106:Los Alamitos Creek
30:Santa Clara County
22:
1530:
1529:
1453:The Bay Institute
1254:Golden Gate Ferry
1153:San Mateo–Hayward
992:Brisbane Baylands
982:Peninsulas/infill
789:César Chávez Park
365:San Francisco Bay
303:San Francisco Bay
102:Almaden Reservoir
42:San Francisco Bay
1560:
1519:
1518:
1507:
1481:
1389:
1344:
1328:
1317:Westpoint Harbor
1287:Port of Richmond
1217:
1176:Benicia–Martinez
1132:
983:
898:
868:
717:
691:Carquinez Strait
682:
667:
576:San Francisquito
472:
442:
420:Yerba Buena Cove
416:
381:
361:
347:
296:
289:
282:
273:
231:Neurotoxicology.
177:biomagnification
157:Mercury toxicity
110:Vasona Reservoir
86:Calero Reservoir
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1307:Berkeley Marina
1282:Oakland Seaport
1269:
1263:
1230:
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1211:Bay Farm Island
1130:
1123:
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1026:
1022:Steamboat Point
981:
896:
887:Treasure Island
866:
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737:protected areas
736:
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696:Oakland Estuary
680:
665:
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410:San Leandro Bay
379:
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98:Guadalupe Creek
54:Los Gatos Creek
38:Guadalupe River
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1480:Transportation
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1443:1971 oil spill
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1403:Thicktail chub
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1378:Harold Gilliam
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1353:Discovery Site
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1348:Delta and Dawn
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701:Raccoon Strait
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501:Coyote (Marin)
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400:San Rafael Bay
397:
395:Richardson Bay
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253:US State News:
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183:Health effects
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70:Pheasant Creek
34:surface runoff
13:
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1012:Hunters Point
1010:
1008:
1007:Fleming Point
1005:
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962:Marin Islands
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867:Major islands
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661:Mission Creek
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375:San Pablo Bay
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335:List of lakes
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173:invertebrates
170:
169:methylmercury
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90:Arroyo Calero
87:
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78:Herbert Creek
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63:
62:Hendrys Creek
59:
55:
51:
47:
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39:
35:
31:
27:
18:
1514:
1502:
1467:
1423:Save The Bay
1322:
1162:
1083:Point Molate
1058:Crissy Field
1017:Sierra Point
997:Point Isabel
977:Seal Islands
942:Hooks Island
927:Castro Rocks
834:SF Bay Trail
546:Corte Madera
353:Subdivisions
268:
261:
254:
244:
237:
230:
204:
195:
186:
166:
150:
133:Monte Sereno
122:
74:Rincon Creek
46:storm drains
25:
23:
1485:Water Trail
1408:Delta smelt
1206:High Street
1196:Park Street
1171:Golden Gate
1103:Steinberger
1078:Napa Sonoma
1002:Foster City
987:Albany Bulb
957:The Sisters
932:Coast Guard
892:Yerba Buena
858:Islands and
516:Schoolhouse
511:San Lorenzo
506:San Leandro
446:San Joaquin
425:Mission Bay
390:Grizzly Bay
385:Golden Gate
320:Hydrography
141:Santa Clara
118:Lake Elsman
58:Trout Creek
1537:Categories
1458:Reber Plan
1383:Marincello
1326:(proposed)
1166:(inactive)
1088:Salt ponds
860:peninsulas
716:Watersheds
666:Reservoirs
651:Strawberry
556:San Rafael
491:Codornices
451:Sacramento
370:Suisun Bay
218:References
82:Golf Creek
66:Ross Creek
1268:Ports and
1201:Fruitvale
1186:Carquinez
1158:Dumbarton
1124:and tubes
1113:Westpoint
917:Belvedere
735:Parks and
626:San Pablo
536:San Mateo
461:Guadalupe
434:Waterways
306:watershed
129:Los Gatos
1521:Category
1226:Transbay
1053:Cordelia
1038:Baylands
1031:Wetlands
952:Red Rock
912:Bay Farm
877:Alcatraz
586:Alhambra
521:Temescal
466:Petaluma
137:Campbell
125:San Jose
1388:Ecology
1343:History
1270:marinas
1236:Ferries
1191:Leimert
1181:Antioch
1131:Bridges
1122:Bridges
1063:Hoffman
1048:Chelsea
1043:Belmont
922:Brother
872:Alameda
636:Wildcat
621:Karlson
611:Garrity
601:Refugio
581:Pacheco
531:Redwood
486:Cerrito
476:Alameda
325:Ecology
313:Outline
223:Sources
161:mercury
1509:Portal
1108:Suisun
1068:Meeker
902:Brooks
656:Easton
631:Castro
606:Pinole
566:Novato
561:Miller
541:Sonoma
526:Sausal
481:Baxter
441:Rivers
415:Former
139:, and
116:, and
80:, and
50:Alviso
32:. The
1336:Other
1216:Tubes
1098:Stege
1073:Mowry
937:Greco
897:Minor
882:Angel
616:Rheem
596:Rodeo
591:Adobe
571:Tolay
380:Minor
360:Major
1093:Seal
972:Ryer
947:Mare
907:Bair
456:Napa
205:The
24:The
967:Roe
104:on
96:on
88:on
1539::
143:.
135:,
131:,
127:,
112:,
108:,
100:,
92:,
76:,
72:,
68:,
64:,
60:,
56:,
295:e
288:t
281:v
248:.
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