ENVIRONMENTAL POLLUTION 1999 Vol.104 No.2/3

1. Reversal of acidification in upland waters of the English Lake　District 　 ∥E.Tipping.-p143 2. Seasonal fluctuations of organochlorine levels in the common eider　　　 　 (SOMATERIA MOLLISSIMA) in lceland∥K.Olafsdottir.-p153 3. Growth and yield responses of Pakistan rice (ORYZA SATIVA L.)　cultivars 　 to O↓3 and NO↓2∥R.Maggs.-p159 4. Pesticide residue assessment in three selected agricultural production　 　 systems in the Choluteca River Basin of Honduras∥J.Kammerbauer.-p171 5. Effects of experimental acidification and liming on terrestrial 　 invertebrates: implications for calcium availability to vertebrates∥S.J. 　 Ormerod.-p183 6. Removal of pesticides from aqueous solutions by combined 　 physicochemical processes-the behaviour of lindane∥A.Kouras.-p193 7. Intrinsic remediation of a diesel fuel plume in Goose Bay， Labrador，　　 　 Canada∥F.Curtis.-p203 8. Utilizing　simulated　weather　patterns　to　predict　runoff　exceedence 　 probabilities for highly sorbed pesticides∥S.A.Cryer.-p211 9. Metal and macronutrient　fluxes　in　heavy- metal　polluted　Scots　pine 　 ecosystems in SW Finland∥J.Derome.-p219 10.Reuse of　effluent　from　a　wastepaper　wash- deinking　process ∥D. G. 　 Economicdes.-p229 11.Changes in soil microbial biomass and microbial activities in response　 　 to 7 years simulated pollutant nitrogen deposition on a heathland and　 　 two grasslands∥D.Johnson.-p239 12.Macroscopic and microscopic symptoms in ABIES RELIGIOSA exposed in a　　 　 oxone in a forest near Mexico City∥D.Alvarez.-p251 13.Application of photocatalytic oxidation treatment to pretreated and　raw 　 effluents from the Kraft bleaching process and　textile inductry∥I.A.　 　 Balcioglu.-p261 14.Chemical controls on acid discharges from acid sulfate soils under　　　 　 sugarcane cropping in an eastern Australian estuarine floodplain∥C.Lin. 　 -p269 15.Trends and seasonality in α-and γ-hexachlorocyclohexane in western　　 　 Canadian surface waters (1975-94)∥R.W.Crosley.-p277 16.Physiological response of barley plants (HORDEUM VULGARE)to cadmium　　 　 contamination in soil during ontogenesis∥A.Vassilev.-p287 17.Differential/combined effect of water contamination with cadmium and　　 　 nickel on tissues of rats∥E.L.B.Novelli.-p295 18.Protocol for analysis of trace metals and other ions in filtered and　　 　 unfiltered fogwater∥S.Cherif.-p301 19.Inhalation toxicity studies of Thimet　( PHORATE)　 in　the　male　swiss 　 albino mouse， MUS musculus: Ⅱ. Lung histopathology， pseudo　 　 -cholinesterase level and haematological studies∥M.Morowati (lndia)　　. 　 -p309 20.Comparative biomonitoring of atmospheric quality in five zones of　　　 　 Cordoba city (Argentina) employing the transplanted lichen USNEA sp.∥　 　 H.A.Carreras.-p317 21.Bioaccumulation and toxicity of mercury in rooted-submerged macrophyte　 　 VALLISNERIA SPIRALIS∥M.Gupta-p327 22.Diagnosis of wind flow and dispersion over complex terrain based on　　 　 limited meteorological data∥E.Davakis.-p333