scholarly journals Reconnaissance of Surface Water Estrogenicity and the Prevalence of Intersex in Smallmouth Bass (Micropterus Dolomieu) Inhabiting New Jersey

2020 ◽  
Vol 17 (6) ◽  
pp. 2024
Author(s):  
Luke R. Iwanowicz ◽  
Kelly L. Smalling ◽  
Vicki S. Blazer ◽  
Ryan P. Braham ◽  
Lakyn R. Sanders ◽  
...  
Keyword(s):  
Land Use ◽  
New Jersey ◽  
Surface Water ◽  
Endocrine Disruption ◽  
Environmental Protection Agency ◽  
Estrogenic Activity ◽  
Smallmouth Bass ◽  
The State ◽  
Base Flow ◽  
Median Surface

The observation of testicular oocytes in male fishes has been utilized as a biomarker of estrogenic endocrine disruption. A reconnaissance project led in the Northeastern United States (US) during the period of 2008–2010 identified a high prevalence of intersex smallmouth bass on or near US Fish & Wildlife Service National Wildlife Refuges that included the observation of 100% prevalence in smallmouth bass males collected from the Wallkill River, NJ, USA. To better assess the prevalence of intersex smallmouth bass across the state of New Jersey, a tiered reconnaissance approach was initiated during the fall of 2016. Surface water samples were collected from 101 (85 river, 16 lake/reservoir) sites across the state at base-flow conditions for estrogenicity bioassay screening. Detectable estrogenicity was observed at 90% of the sites and 64% were above the US Environmental Protection Agency trigger level of 1 ng/L. Median surface water estrogenicity was 1.8 ng/L and a maximum of 6.9 ng/L E2EqBLYES was observed. Adult smallmouth bass were collected from nine sites, pre-spawn during the spring of 2017. Intersex was identified in fish at all sites, and the composite intersex prevalence was 93.8%. Prevalence across sites ranged from 70.6% to 100%. In addition to intersex, there was detectable plasma vitellogenin in males at all sites. Total estrogenicity in surface water was determined at these fish collection sites, and notable change over time was observed. Correlation analysis indicated significant positive correlations between land use (altered land; urban + agriculture) and surface water estrogenicity. There were no clear associations between land use and organismal metrics of estrogenic endocrine disruption (intersex or vitellogenin). This work establishes a baseline prevalence of intersex in male smallmouth bass in the state of New Jersey at a limited number of locations and identifies a number of waterbodies with estrogenic activity above an effects-based threshold.

Quantifying Travel and Air-Quality Benefits of Smart Growth in Maryland’s State Implementation Plan

2003 ◽  
Vol 1858 (1) ◽  
pp. 80-88 ◽  
Author(s):  
Feng Liu
Keyword(s):  
Land Use ◽  
Air Quality ◽  
Environmental Protection Agency ◽  
Smart Growth ◽  
Growth Index ◽  
The State ◽  
Policy Implications ◽  
High Tech ◽  
Implementation Plan ◽  
Index Model

Travel and air-quality benefits often are cited as among the many benefits of promoting smart growth. Through a recently released guidance, the U.S. Environmental Protection Agency officially acknowledged the role of smart growth in improving air quality and has offered three ways to account for air-quality benefits. The state of Maryland’s effort—the first of its kind—to quantify travel and air-quality benefits in the state implementation plan (SIP) for air quality is presented. As one of the three demonstration projects in the state’s smart growth and innovative SIP, the Digital Harbor is a collection of redevelopment and infill development projects in the areas surrounding Baltimore’s harbor. These areas are historically Baltimore’s base for manufacturing and port trade and are now being renovated and transformed into a hub for high-tech and tech-driven companies. Quantification of travel and air-quality benefits was conducted at two levels: at the macro level, a regional transportation model was used to evaluate travel and air-quality effects of these projects’ central location; and at the micro level, the Smart Growth INDEX model was used to quantify travel effects and air-quality benefits of land use density, diversity, and design. Benefits were estimated through comparison of a smart growth scenario with two alternative growth scenarios. Subsequent model runs were conducted to examine the sensitivity of potential benefits to different combinations of land use density and land use mix. Policy implications are presented for the roles of planning and designing in achieving the goal of air-quality improvement.

Land use associated with Cryptosporidium sp. and Giardia sp.in surface water supply in the state of São Paulo, Brazil

2020 ◽  
Vol 266 ◽  
pp. 115143
Author(s):  
Bruna Suellen Breternitz ◽  
Denise Piccirillo Barbosa da Veiga ◽  
Maria Tereza Pepe Razzolini ◽  
Adelaide Cássia Nardocci
Keyword(s):  
Land Use ◽  
Surface Water ◽  
Water Supply ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Surface Water Supply

scholarly journals Climate and land use changes as origin of the Water Cycle variations and sediment transport in Pesaro Urbino Province, Central and Eastern Italy

2016 ◽  
Author(s):  
Daniele Farina ◽  
Paolo Cavitolo
Keyword(s):  
Land Use ◽  
Surface Water ◽  
Integrated Management ◽  
Land Use Changes ◽  
Winter Season ◽  
Base Flow ◽  
Gradual Transition ◽  
Mountain Areas ◽  
Mountain Area ◽  
Carbonate Aquifers

The study shows a significant net precipitation and surficial runoff decrease in the Province of Pesaro-Urbino during the 1950-2010 period, especially affecting mountain areas and the water-surplus winter season. Runoff variation is also related to a significant land use change, due to a progressive natural reafforestation process that has taken place in the mountain area. Candigliano river’s base-flow, fed by carbonate aquifers’ groundwater discharge, was found more stable over time, due to an aquifers’ capacity largely exceeding that of existing surface reservoirs. The latter have been affected by a significant silting process, which is still active, as suggested by specific erosion rates of watersheds, particularly in the Foglia basin. Important implications both on sediment mobility, surface water-supply reliability, minimum flow constraints and effectiveness of volume-recovery projects of reservoirs were preliminarly evaluated. In the perspective of a necessary adaptation process to the climate change, the study suggests a gradual transition from the present prevailing use of surface water, to an integrated management of the carbonate aquifers’ dynamic resources, on a seasonal base, as a sustainable strategy for the next future.

Surface Water Quality in Relation to Soil Type, Land use and Discharge in a Rural Catchment Area

1985 ◽  
Vol 17 (6-7) ◽  
pp. 1155-1164 ◽  
Author(s):  
M C. H. Witmer
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Surface Water ◽  
Soil Type ◽  
Drainage Basin ◽  
Surface Water Quality ◽  
Sandy Soils ◽  
Base Flow ◽  
Run Off ◽  
Household Wastewater

Surface water quality and the factors that influence it were investigated in a rural area that lies between an ice-pushed ridge and river backlands. The influences of soil type, land use and household wastewater on the concentrations of nutrients were studied during base-flow as well as peak-flow periods. Samples were taken in ditches and canals, more frequently as discharge increased. Average values of the base-flow quality in ditches were calculated per soil type and land use and for all measure points in the canals. The fluctuations of water quality were plotted and analyzed in concentration-time and concentration-discharge diagrams. The relative importance for the quality of total discharge in the main canal of the loads coming from several parts of the drainage basin, was investigated with a stepwise multiple variable regression analysis. During base-flow situations sources of nutrients are the intensively cultivated sandy soils. In addition the concentration of orthophosphate is increased by household wastewater. During peak-flows, potassium and nitrate run off from all soil types with all types of land use, resulting in high concentrations in the surface water, in spite of dilution by rainwater. It is concluded that for proper management, intensity of manuring and fertilizing should decrease, especially on sandy soils. Wastewater should be drained outside the basin, to lower the concentration of orthophosphate.

scholarly journals Analysis of the long-term effects of groundwater extraction on the water balance in part of the Urucuia Aquifer System in Bahia - Brazil

2019 ◽  
Vol 14 (6) ◽  
pp. 1 ◽  
Author(s):  
Leanize Teixeira Oliveira ◽  
Harald Klammler ◽  
Luiz Rogério Bastos Leal ◽  
Eduardo Moussale Grissolia
Keyword(s):  
Steady State ◽  
Surface Water ◽  
Water Balance ◽  
The State ◽  
Base Flow ◽  
Groundwater Extraction ◽  
Groundwater Storage ◽  
Aquifer System ◽  
The Impact

In agricultural regions where there is insufficient rainwater for cultivation, understanding the dynamics of surface water and groundwater is critical to assess the impact of increased well pumping on the water balance. The western region of the state of Bahia-Brazil, the largest area of agribusiness in the state, has experienced progressive occupation since the 1980s, resulting in pressure on water resources - mainly after the introduction of irrigation - and conflicts among water users. This study analyzed the effects of groundwater extraction by wells in a portion of the Urucuia Aquifer System. The methodology used was the simulation of groundwater flow in steady-state for three scenarios: i) without withdrawal of water by pumping wells; (ii) with current withdrawal rates; and (iii) with 60% additional extraction. After defining well production rates from field surveys (4.6 m3 s-1) and modeling of the aquifer base geometry (maximum thickness of 535 m), the steady-state models with and without pumping show that, in the long term, groundwater storage decreases by 2 km3 (0.8 m on average in the aquifer) without interference in the regional flow direction. The mass balance shows that the base flow of the main rivers is reduced by approximately 6% after current groundwater extraction and an additional 2.5% after additional extraction. The results point to a greater impact on surface water caused by a reduction in groundwater storage and related river base flow. This indicates the importance of maintaining and expanding the groundwater-level monitoring network.

Advancements in the Management of Dredged Material in the State of New Jersey

2008 ◽  
Author(s):  
Douglas A. Gaffney ◽  
Edward S. Gorleski ◽  
Genevieve Boehm Clifton
Keyword(s):  
New Jersey ◽  
The State ◽  
Dredged Material

Managing the impacts of mining on Ghana’s water resources from a legal perspective

2018 ◽  
Vol 1 (3) ◽  
pp. 156-165 ◽  
Author(s):  
Nasirudeen Abdul Fatawu
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
Environmental Protection Agency ◽  
Large Scale ◽  
Small Scale ◽  
Mining Activities ◽  
Protection Agency ◽  
Environmental Laws ◽  
Mining Areas ◽  
Legal Perspective

Recent floods in Ghana are largely blamed on mining activities. Not only are lives lost through these floods, farms andproperties are destroyed as a result. Water resources are diverted, polluted and impounded upon by both large-scale minersand small-scale miners. Although these activities are largely blamed on behavioural attitudes that need to be changed, thereare legal dimensions that should be addressed as well. Coincidentally, a great proportion of the water resources of Ghana arewithin these mining areas thus the continual pollution of these surface water sources is a serious threat to the environmentand the development of the country as a whole. The environmental laws need to be oriented properly with adequate sanctionsto tackle the impacts mining has on water resources. The Environmental Impact Assessment (EIA) procedure needs to bestreamlined and undertaken by the Environmental Protection Agency (EPA) and not the company itself.

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