An exhaust gas treatment system comprising: a monolithic wall-flow filter catalytic article located downstream of and in fluid communication with an internal combustion engine, wherein the monolithic wall-flow filter catalytic article is in a close-coupled position close to the engine, wherein the distance from an exhaust manifold to the upstream end of the monolithic wall-flow filter catalytic article is 1.27 to 30.48 cm, a flow-through monolith catalytic article downstream of and in fluid communication with the monolithic wall-flow filter catalytic article, the flow-through monolith catalytic article comprising a substrate having a selective catalytic reduction coating composition disposed thereon, the SCR coating composition comprising a first SCR catalyst composition and a second SCR catalyst composition, wherein the second SCR catalyst composition comprises a molecular sieve comprising a base metal; and a first hydrogen injection article, wherein the first hydrogen injection article is configured to introduce hydrogen upstream of the monolithic wall-flow filter catalytic article; wherein the monolithic wall-flow filter catalytic article comprises: a substrate having an axial length L, a diameter D, and a volume, wherein the substrate comprises a front, upstream end and a rear, downstream end defining the axial length, an aspect ratio defined by LID of from about 1 to about 20; and a functional coating composition disposed on the substrate, the functional coating composition comprising a first sorbent composition, an oxidation catalyst composition, and optionally, a second sorbent composition, wherein the first sorbent composition comprises a zeolite selected from the group consisting of faujasite, chabazite, clinoptilolite, mordenite, silicalite, zeolite X, zeolite Y, ultrastable zeolite Y, ZSM-5 zeolite, offretite and beta zeolite. a flow-through monolith catalytic article downstream of and in fluid communication with the monolithic wall-flow filter catalytic article, the flow-through monolith catalytic article comprising a substrate having a selective catalytic reduction coating composition disposed thereon, the SCR coating composition comprising a first SCR catalyst composition and a second SCR catalyst composition, wherein the second SCR catalyst composition comprises a molecular sieve comprising a base metal; and a first hydrogen injection article, wherein the first hydrogen injection article is configured to introduce hydrogen upstream of the monolithic wall-flow filter catalytic article; wherein the monolithic wall-flow filter catalytic article comprises: a substrate having an axial length L, a diameter D, and a volume, wherein the substrate comprises a front, upstream end and a rear, downstream end defining the axial length, an aspect ratio defined by LID of from about 1 to about 20; and a functional coating composition disposed on the substrate, the functional coating composition comprising a first sorbent composition, an oxidation catalyst composition, and optionally, a second sorbent composition, wherein the first sorbent composition comprises a zeolite selected from the group consisting of faujasite, chabazite, clinoptilolite, mordenite, silicalite, zeolite X, zeolite Y, ultrastable zeolite Y, ZSM-5 zeolite, offretite and beta zeolite. a substrate having an axial length L, a diameter D, and a volume, wherein the substrate comprises a front, upstream end and a rear, downstream end defining the axial length, an aspect ratio defined by LID of from about 1 to about 20; and a functional coating composition disposed on the substrate, the functional coating composition comprising a first sorbent composition, an oxidation catalyst composition, and optionally, a second sorbent composition, wherein the first sorbent composition comprises a zeolite selected from the group consisting of faujasite, chabazite, clinoptilolite, mordenite, silicalite, zeolite X, zeolite Y, ultrastable zeolite Y, ZSM-5 zeolite, offretite and beta zeolite.