Shopping basket > Review order Currently in your basket Before proceeding to checkout you will need you to either login or create an account. Your items will remain in your basket. USDItem TotalAlternate: COVID-19 outbreak monitoring through SARS-CoV-2 wastewater surveillance: a case-study for medium outbreaks in small urban environments (18 words) $11.50RemoveWhole Effluent Toxicity Evaluation at Recycled Fiber Paperboard Mill Leads to Indirect Discharge to POTW (16 words) $11.50RemoveClarifier Design, MOP FD-8, 2nd Edition Water Environment Federation (3 words) $0.00RemoveNet total: $23.00VAT: $0.00Gross total: $23.00 Payment info When you click the checkout button, you will be redirected to a secure Paypal page where you can either pay using an existing Paypal account, or pay by card without a Paypal account. Continue shopping We access Visa, Mastercard, Maestro, American Express all through Paypal.