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1 e biodegradation in a contaminated subarctic aquifer.
2 wn is the source of stray gas in the Trinity Aquifer.
3 s secondary sources, releasing U back to the aquifer.
4 e, lower saturated zone) within the alluvial aquifer.
5 d the water level in the perched groundwater aquifer.
6 umulation and distribution of FIB in a beach aquifer.
7 r pumping from the United States High Plains Aquifer.
8 d technologies across the Kansas High Plains Aquifer.
9 trate from the vadose zone into the alluvial aquifer.
10 progress of such redox conversion within the aquifer.
11 d arsenic contamination of this pre-Holocene aquifer.
12 eam starts to separate hydraulically from an aquifer.
13 bsurface conduit networks in a coastal karst aquifer.
14 served spring, which drains the investigated aquifer.
15 nthetic biofilm and a subsurface groundwater aquifer.
16 e of organic compounds was identified in the aquifer.
17 from nearby coal seams interacting with the aquifer.
18 cartyi to establish anoxic conditions in the aquifer.
19 c, long-term infiltration from the overlying aquifer.
20 rally extensive, and hydraulically connected aquifer.
21 ported by pipeline, and injected into saline aquifers.
22 estic supply over subareas of nine Principal Aquifers.
23 over sedimentary organic matter in alluvial aquifers.
24 remediation approaches for treating impacted aquifers.
25 import food irrigated from rapidly depleting aquifers.
26 rawals could help with regime change in some aquifers.
27 re deposits, marine basins, and contaminated aquifers.
28 s specific to carbon sequestration in saline aquifers.
29 ast transit of water from the surface to the aquifers.
30 ty, and hence its delivery into contaminated aquifers.
31 ward and potentially contaminate groundwater aquifers.
32 le climate patterns are depleting rivers and aquifers.
33 ement of groundwater extraction from coastal aquifers.
34 ward of As-polluted groundwater in overlying aquifers.
35 ng oil fields compared with those for saline aquifers.
36 transport during remediation of contaminated aquifers.
37 sters dissolved arsenic (As) in contaminated aquifers.
38 waters and saltwater intrusion into coastal aquifers.
39 nt responses of GWS changes across different aquifers.
40 pression of stray gas in unconsolidated sand aquifers.
41 h porosity and permeability saline sandstone aquifers.
42 med on 39 groundwater well samples from five aquifers.
43 ogen prevalence in granular versus fractured aquifers.
44 odern onshore hydrologic system and offshore aquifers.
45 t electron acceptors and donors in soils and aquifers.
49 ion to groundwater in the Kansas High Plains Aquifer, a rapidly depleting asset supporting significan
51 rrent NO3(-) production by anammox in anoxic aquifers, a process that has been largely overlooked.
52 ater consumption and it relies heavily on an aquifer (about 50% of agricultural consumption) that is
54 ex sediment and planktonic consortia from an aquifer adjacent to the Colorado River (USA) and reconst
55 xpected to be applicable in studies of other aquifers affected by explosives used in construction.
57 ater levels to rise (~11 m) in down-gradient aquifers after the 2016 M(w) 7.0 Kumamoto earthquake.
58 ng clay layers typically protect groundwater aquifers against downward intrusion of contaminants.
62 ing reactive transport modeling coupled with aquifer analyses and measured water chemistry, we invest
65 stream receiving water from the High Plains Aquifer and the occurrence of fishes characteristic of s
68 bout the attenuation of solutes within karst aquifers and even less about the attenuation of particul
69 such as regions of diffuse flow, subseafloor aquifers and hydrothermal plumes have important roles in
70 the sandy Holocene and gravelly Pleistocene aquifers and is also abstracted by the pumping station.
71 monitor the reactivity of micropollutants in aquifers and may guide future efforts to accomplish CSIA
74 read in sediments, hydrothermal vent fields, aquifers and subsurface environments such as oil reservo
75 ethane concentrations were found in only one aquifer, and both isotopic and microbial data support a
76 c supply across the entirety of 15 Principal Aquifers, and at 11.3% of 247 sites representing the res
77 ion) and blue (extracted from rivers, lakes, aquifers, and dams) water demand and crop yields for sev
78 omineralization, CO2 sequestration in porous aquifers, and pressure solution and crystallization in c
80 d favoring stronger degradation close to the aquifer-aquitard interface than with increasing depth.
81 Borden research site was selected, where an aquifer-aquitard system was artificially contaminated by
82 ading to ternary uranyl complexes within the aquifer are, in part, created by infiltration through th
85 of why apparent reaction rates of oxygen in aquifers are typically smaller than those of nitrate, wh
86 ial use of saline groundwater of the coastal aquifer as feedwater for desalination in comparison to s
88 en flow may mix dissolved CO2 throughout the aquifer at fast advective time-scales through convective
90 l West Bengal, India, those from Pleistocene aquifers at depths >70 m beneath paleo-interfluves conta
91 is a key factor for sustaining the observed aquifer behaviors despite continuous oxygen influx and t
92 in arsenic concentrations in a pre-Holocene aquifer below such a clay layer and the repeated failure
95 near-surface horizon and oxic-suboxic gravel aquifers beneath the soil horizons, Fe(III)-oxides were
96 l model whereby FIB are delivered to a beach aquifer by wave-induced infiltration across the beach fa
98 ydraulic relationship between the stream and aquifer can be altered from hydraulic connection to disc
99 g the reduction capacity of the downgradient aquifer can inform restoration strategy and offer a usef
101 Seepage of SCN(-)-contaminated waters into aquifers can occur from unlined or structurally compromi
102 Experiments conducted in a heterogeneous aquifer cell further demonstrated the potential for stab
104 odel solutions, with those representative of aquifer conditions requiring lower NO2(-) reoxidation fl
105 be explained, in part, by quasi-equilibrium aquifer conditions that occur after "long-time" pumping,
107 sed to examine the role of land surface-soil-aquifer connections in producing elevated manganese conc
108 s from this study indicate land surface-soil-aquifer connections play an important role in producing
109 nd into density-stratified coastal carbonate aquifers containing a surprising diversity of endemic an
110 observations were used to estimate that the aquifer contains approximately 18% water sourced from th
111 cern primarily due to the perceived risks of aquifer contamination and greenhouse gas (GHG) emissions
112 SCVF of gases, which does not pose a risk of aquifer contamination but does contribute to GHG emissio
115 rough stratigraphy typical of fluvio-deltaic aquifers could contaminate deep (>150 m) groundwater wit
116 h as those comprising the deeper Pleistocene aquifer) could stimulate microbial communities and resul
117 ugh a conduit sourced from a deep subglacial aquifer, creating a dramatic red surface feature known a
118 stability of U(IV) solid phases in anaerobic aquifers depends upon their reactivity in the presence o
120 together with their distribution across the aquifer depth and performed semigeneric 2D reactive mass
122 river water becomes anoxic in the uppermost aquifer due to the oxidation of dissolved organic carbon
123 structures including rare populations in an aquifer ecosystem, the Mahomet Aquifer, USA, by both 16S
125 leads to the immobilization of CO2 in saline aquifers, enhancing the security and capacity of storage
127 rily rely on the commonly shared High Plains aquifer for irrigation, overreliance poses a risk for wa
130 plications for storage of CO2 in deep saline aquifers, fuel cells, oil recovery, and for the remediat
131 ng for mapping vertical reactivity trends in aquifers, generating new understanding of subsurface eco
135 r, the Trinity and Edwards-Trinity (Plateau) aquifers harbor additional species with similarly small
136 We show that oxidative U(VI) release to the aquifer has the potential to sustain a groundwater conta
138 desh, we illustrate how interactions between aquifer heterogeneity and groundwater exploitation jeopa
140 oncerns about the potential contamination of aquifers; however, the groundwater fate and transport of
141 well recognized in granular versus fractured aquifers; however, the impact of residence time (inactiv
142 ter-methane attenuation in the Poison Canyon aquifer: (i) consumption of methane and sulfate and prod
143 investigate GWS changes over seven critical aquifers identified as significantly distressed by satel
148 s and Mn contamination including the Glacial Aquifer in the U.S., the Ganges-Brahmaputra-Mehta Basin
150 s of Mo in drinking-water wells from shallow aquifers in a region of widespread CCR disposal in south
155 quifers in the USA, and half of the selected aquifers in Iran are dominated by human activities, whil
157 that approximately one-third of the selected aquifers in the USA, and half of the selected aquifers i
159 ial leakage of reservoir fluids into shallow aquifers, in particular the possible environmental impac
160 d residence time and storage capacity of the aquifer indicate that restoration projects designed to p
161 re to those of potential carbon pools in the aquifer indicated that at least 51% of the RNA was deriv
162 Simulated transport of E. coli in a beach aquifer is complex and does not correlate with conservat
164 es shown in the map, the important Silverado aquifer is well isolated relative to previous surface wa
165 he latter 'poroelastic' response of confined aquifers is a well-established phenomenon which has been
166 on dioxide (CO(2)) in deep geological saline aquifers is needed to mitigate global greenhouse gas emi
167 upture systems crosscut surrounding mountain aquifers, leading to water release that causes groundwat
168 itu bacterial communities inhabiting shallow aquifers (<30 m) at two sites in Araihazar, Bangladesh,
169 the world's freshwater reserves are found in aquifers, making groundwater one of the most important r
170 hrough groundwater withdrawal and changes in aquifer management during the decade spanning 1996-2005.
172 to characterize the redox properties of the aquifer materials that are responsible for abiotic NA.
175 at redox interfaces in sulfur-rich, alkaline aquifers may release concerning levels of As, even when
176 known to exist in other uranium-contaminated aquifers, may be regionally important to uranium persist
177 he chemical heterogeneity of surfaces within aquifer media affects their surface charge distribution
178 tion by three Fe(III)- and Mn(IV)-containing aquifer minerals: ferrihydrite, goethite, and pyrolusite
183 on of these top consumers in four floodplain aquifers of Montana and Washington is methane-derived.
184 Sediments were moistened with synthetic aquifer or deionized water according to the moisture reg
185 sites, the risk of CO2 migrating to potable aquifers or reaching the atmosphere was negligible due t
187 base and publicly available maps of soil and aquifer physicochemical properties to predict groundwate
188 ater level fluctuations are dominated by the aquifer poroelastic response to changes in terrestrial w
189 her hydrocarbons in domestic-use groundwater aquifers poses significant environmental and human healt
190 nto a low-arsenic pre-Holocene (>12 kyr-old) aquifer promotes the reductive dissolution of iron oxide
191 ponds or tube wells to alternatives [managed aquifer recharge (MAR) and rainwater harvesting] that ai
193 ther trace metal contaminants during managed aquifer recharge (MAR) poses a challenge to maintaining
195 ses to changes in groundwater storage due to aquifer recharge and drainage as well as to changes in s
196 ions remain about how these types of managed aquifer recharge systems should be designed; furthermore
197 uction occurs via induced bank filtration or aquifer recharge, additional site-specific factors shoul
199 ntion under conditions commonly found within aquifer redox fluctuating and transition zones where bot
201 n water abstraction scenarios on the overall aquifer regime (e.g., depleted, natural flow-dominated,
203 ompiled groundwater chemical data from three aquifer regions across the world that have been reported
204 tions of rhamnolipid for surfactant-enhanced aquifer remediation (SEAR), which may overcome the drawb
208 ter recharge, groundwater residence time and aquifer-river exchanges from few hours to several weeks
209 r experiments, this behavior occurred in the aquifer sand between reducing lenses and was attributed
212 hanisms of As transformation and mobility in aquifer sediment (in particular, the PRB downstream link
215 speciation and mobility of As in downstream aquifer sediment, where up to 47% of total As initially
218 cale cultivation-independent metagenomics to aquifer sediments and groundwater, and reconstruct 2,540
220 upper aquitard (clayey silt) and lower sandy aquifer sediments in Van Phuc (Hanoi area, Vietnam), cha
221 to quartz, goethite, birnessite, illite, and aquifer sediments induced an average isotopic fractionat
223 study examines As retention and transport in aquifer sediments using a multistage column experiment i
224 subsequently mobilized Ra from downgradient aquifer sediments via Ra-desorption and Mn/Fe-reduction
225 ease from Holocene and Pleistocene Cambodian aquifer sediments was investigated using microcosm exper
226 rentially attracted to areas overlying major aquifers since industrialization due to the emergent acc
231 urces has been identified in numerous global aquifers, suggesting that extractions have exceeded natu
234 iod from the tropical, fluvio-deltaic Bengal Aquifer System (BAS), the largest aquifer in south Asia.
235 at the hydraulic connectedness of the stream-aquifer system can reach a critical disconnection state
236 show that the biogeochemical response of the aquifer system has not mobilized naturally occurring tra
237 dicate that the living rare biosphere in the aquifer system has the metabolic potential to adapt to l
239 documented the response of the Poison Canyon aquifer system several years after upward migration of m
241 as a major driving forcing affecting coastal aquifer system, and deterministic modeling has been very
242 water as the most saline source to a coastal aquifer system, thereby concluding that seawater infiltr
246 mamoto setting is representative of volcanic aquifer systems at convergent margins where seismotecton
252 y, a variable representing three-dimensional aquifer texture from the Central Valley Hydrologic Model
253 ling new wells to tap intermediate (45-90 m) aquifers that are low in As at their own expense of US$3
254 end on groundwater from geologically complex aquifers that are over-exploited and threatened by conta
255 mining and ore processing; often in alluvial aquifers that contain organic-rich, reduced sediments th
256 ciers provide summer meltwater to rivers and aquifers that is sufficient for the basic needs of 136 m
257 e reducing lenses (and some locations in the aquifer) the aqueous sulfide/Fe molar ratios exceeded 1
259 and attenuation of particles within a karst aquifer through multitracer testing, using four differen
260 on of the widespread As-pollution in shallow aquifers through exploitation of deep Pleistocene aquife
261 iltration to leach arsenic from the Holocene aquifer to below the World Health Organization limit of
262 ed results among 44 locations across the six aquifers to assess the generality of reactivity trends.
264 ion have underestimated the capacity of deep aquifers to remove nitrate, while overestimating nitrate
266 aracterization of biogeochemical reactivity, aquifer transport properties, groundwater recharge, grou
267 The groundwater age at 40 m depth in the aquifer underlying the river was 1.3 +/- 0.8 years, dete
268 lations in an aquifer ecosystem, the Mahomet Aquifer, USA, by both 16S rDNA and rRNA amplicon deep se
269 rtificial recharge of subsurface groundwater aquifers via the reuse of treated municipal wastewater.
270 satellites, form the basis for estimates of aquifer volume change in California's Central Valley.
272 tible with the hypothesis that the source of aquifer volume changes are variations in effective press
273 s far from known well locations, linking the aquifer volume changes to agricultural, industrial, and
275 concern in Florida for their direct role on aquifer vulnerability and potential loss of lives and pr
276 urce mechanism of chloride to the floodplain aquifer was high-concentration, overbank flood events in
277 5-65 m) groundwater in the same pre-Holocene aquifer was recharged only 10-50 years ago but is still
279 ation type, and pump energy source data with aquifer water level and groundwater chemistry informatio
280 r growth conditions relevant in contaminated aquifers, we investigated Dehalococcoides-level populati
282 an serve as long-term contaminant sources to aquifers when contaminant mass diffuses from the aquitar
283 almost exclusively in confined Coastal Plain aquifers where old (low percent-modern carbon-14) ground
285 the convection and mixing of CO2 in a brine aquifer, where the spread of dissolved CO2 is enhanced b
286 ilization of geogenic uranium in the studied aquifers which are unaffected by nuclear activities.
287 seawater, pumped from beach wells in coastal aquifers which penetrate beneath the freshwater-seawater
288 ut has consumed the reducing capacity of the aquifers, which is present as pyrite, degradable organic
289 ne that served as a proxy for a downgradient aquifer, while a well located approximately 23 m away wa
290 s indicate FIB rapidly accumulate in a beach aquifer with FIB primarily associated with sand rather t
293 locally degrade groundwater quality, even in aquifers with unconcerning solid-phase As concentrations
295 ed 39-90% of potential N2 production in this aquifer, with rates on the order of 10 nmol N2-N L(-1) d
296 ore susceptible to contamination than porous aquifers, with the transport of particulate matter being
300 ers through exploitation of deep Pleistocene aquifers would improve if guided by an understanding of